Best CMMS for Oil and Gas 2026

By the editors at Reliable. Last updated October 22, 2026.

Updated October 2026: Infor EAM is now Octave Attune EAM, and AVEVA and Bentley are shown as integrity layers run over a CMMS.

The short version: Oil and gas CMMS is one of the highest-stakes industrial software categories. Process Safety Management failures can be fatal, and the documentation duties under OSHA 1910.119, EPA's Risk Management Program, and BSEE's offshore SEMS rule make audit-ready maintenance records operationally critical. IBM Maximo Application Suite leads the category overall: IBM's Maximo for Oil and Gas and Maximo Health, Safety and Environment name permit to work, lockout/tagout, management of change, pre-start safety reviews, incident investigation, and contractor safety as built-in workflows, and IBM publishes a named oil and gas deployment.

SAP S/4HANA Asset Management is the strongest pick for SAP-standardized operators. AVEVA Asset Performance Management and Bentley AssetWise Reliability are the two asset integrity layers on this list: both run risk-based inspection, RCM, and FMEA analysis and hand the resulting work to an EAM or CMMS, and neither vendor sells a CMMS of its own. Octave Attune EAM, the former Infor EAM, is the mid-market choice and the only platform here whose pages name linear assets with geospatial tracking. eMaint and MaintainX serve smaller operators and oilfield service companies.

Choose by segment (upstream, midstream, downstream), regulatory exposure, ERP standard, and historian environment, and treat horizontal CMMS rankings as a starting point only.

How We Evaluated

This guide is independent editorial analysis based on publicly available product documentation, verified customer reviews across G2 and Capterra, hands-on product demonstrations, and conversations with reliability engineers, mechanical integrity specialists, and operations leaders across upstream, midstream, and downstream operations. Reliable Magazine does not sell CMMS or EAM software and has no commercial interest in routing buyers toward any particular platform. Reliable does not accept payment for rankings. Vendors may sponsor enhanced listings with additional detail, but editorial rankings are independent. Read our editorial policy.

We evaluated each platform across six criteria that matter most for oil and gas CMMS decisions:

• Process Safety Management compliance: support for the OSHA 1910.119 elements that land on maintenance, including mechanical integrity, management of change, pre-startup safety review, and incident documentation, judged by what each vendor's own pages name

• Mechanical Integrity programs: inspection scheduling and records for the equipment that API 510, 570, and 653 and the API RP 580 and 581 risk-based inspection practices cover (pressure vessels, piping, storage tanks), plus corrosion and degradation tracking, judged by what each vendor names

• AVEVA PI System integration: quality of native or connector-based integration with the dominant oil and gas historian (the former OSIsoft PI System)

• Mobile and offline capability: usability for technicians at remote wellsites, pipeline stations, offshore platforms, and refinery field operations

• ERP integration: handshake quality with SAP S/4HANA, Oracle, and other ERPs common in oil and gas operations

• Track record at scale: oil and gas deployments as each vendor's own pages and newsrooms name them

Why Oil and Gas CMMS Is Different

Oil and gas CMMS selection differs from general CMMS evaluation in four ways.

First, Process Safety Management compliance is the organizing constraint. OSHA 1910.119 covers processes that hold a highly hazardous chemical at or above its threshold quantity, or 10,000 pounds or more of a Category 1 flammable gas or a flammable liquid with a flashpoint below 100 °F, which pulls in gas plants, refineries, petrochemical units, and many production and processing facilities. The standard exempts retail facilities, oil or gas well drilling or servicing operations, and normally unoccupied remote facilities, so drilling contractors and unmanned wellsites sit outside it while the processing plants they feed sit inside. Its fourteen elements include mechanical integrity, management of change, pre-startup safety review, incident investigation, hot work permits, contractor management, and compliance audits. Offshore, BSEE's Safety and Environmental Management Systems rule (30 CFR 250, Subpart S) carries its own mechanical integrity, management of change, and pre-startup review sections. A CMMS that supports these workflows out of the box reduces compliance overhead. One that needs extensive configuration to approximate them creates compliance risk that is hard to see until an audit or an incident.

Second, mechanical integrity programs follow API practices that horizontal CMMS rarely supports natively. API 510 covers in-service inspection of pressure vessels, API 570 piping, and API 653 aboveground storage tanks; API RP 580 sets out risk-based inspection principles and API RP 581 a quantitative method for applying them. Each sets inspection intervals, methods, inspector qualifications, and records that must be evident in CMMS data during an audit, and 1910.119(j) adds that every inspection and test record must carry the date, the inspector's name, the equipment identifier, the test performed, and the results. Our guide to API 510, 570, and 653 inspection intervals has the interval tables. Platforms with pre-configured inspection workflows save implementation time and reduce audit findings; platforms without them require custom development that often leaves gaps.

Third, oil and gas operations punish weak mobile software. Remote wellsites have intermittent cellular coverage. Offshore platforms operate beyond cellular range. Pipeline pig launcher and receiver sites sit unmanned across hundreds of miles. Refinery field work often requires intrinsically safe devices. A CMMS that needs a live connection to execute work orders fails in these environments, so full offline capability is operationally critical.

Fourth, the industry depends on process historians at a level uncommon elsewhere. AVEVA PI System (the former OSIsoft PI System) is close to universal across upstream, midstream, and downstream. Temperatures, pressures, flows, vibration, and levels stream from DCS and SCADA systems through PI to operations and reliability teams. A CMMS that integrates cleanly with PI can trigger condition-based work from real equipment conditions. One that does not either runs apart from process reality or depends on fragile custom integrations that produce data quality problems.

One regulatory note since this guide was first published: EPA's Risk Management Program rule (40 CFR Part 68) is under revision. EPA finalized its Safer Communities by Chemical Accident Prevention rule in 2024, then on February 24, 2026 published the Common Sense Approach to Chemical Accident Prevention proposed rule to revise it; comments closed May 11, 2026. Facilities should check EPA's RMP page for the current requirements before building compliance workflows around either version.

The 7 Best CMMS Platforms for Oil and Gas in 2026

1. IBM Maximo Application Suite — Best for Oil and Gas Overall

IBM Maximo leads this category because IBM's own pages name more of the workflows oil and gas regulators care about than any other vendor here. IBM positions Maximo for Oil and Gas as a suite of maintenance and HSE applications for rigs, wells, pipelines, pumps, fleets, and plants across extraction, distribution, and refinement, with embedded processes and data models for petroleum and chemicals. Maximo Health, Safety and Environment, the HSE application IBM's oil and gas page points to, names incident management with AI-assisted classification and root cause tracking; control of work covering permit to work, lockout/tagout, isolations, certifications, and risk assessments linked to work orders, which IBM says strengthens process safety; management of change records tied to assets, procedures, and permits, with pre-start safety reviews on mobile devices; contractor safety and competency records; and environmental compliance with waste tracking, emissions monitoring, audits, and an IBM Envizi integration for greenhouse gas calculations.

The suite covers the rest of the stack: Maximo EAM for work orders, schedules, and inventory, MRO Inventory Optimization, Maximo Monitor and Health for condition-based maintenance from sensor data, and IoT and SCADA integration for pipelines, storage terminals, and transportation assets, with spatial capabilities for asset visualization. Maximo Monitor 9.1 adds an improved AVEVA PI historian integration, so PI data can reach Monitor metrics and, through meter-metric mapping, Maximo Manage meters without a custom cron task. IBM's named oil and gas reference is Petroleum Development Oman, which migrated to a cloud-based Maximo deployment; IBM's HSE case studies are power generators (The Hub Power Company reports a 60 percent reduction in management of change approval times, a vendor figure).

What IBM's pages do not say matters too. Neither the oil and gas page nor the HSE page names OSHA 1910.119, API 510, 570, or 653, PHMSA, or BSEE, and mechanical integrity does not appear as a named module. Buyers who need API-interval inspection scheduling and risk-based inspection should ask IBM to demonstrate them in Maximo Manage or point to a partner solution. The remaining trade-off is scale: Maximo Application Suite is licensed through AppPoints, and the entry SaaS tier caps a deployment at 25 users and one environment.

Best for: Oil and gas majors, national oil companies, and complex independent operators with multi-asset operations and significant PSM exposure.

Pricing: Published for the entry tier only. Maximo Application Suite Essentials (Maintenance) starts under US$40,000 a year for 150 AppPoints, one environment, and up to 25 users on a twelve-month minimum term; Standard SaaS starts at 300 AppPoints and is quoted; Premium and client-managed software are quoted. IBM's pricing page lists select industry solutions in the Standard and Premium SaaS tiers and all industry solutions in client-managed software.

2. SAP S/4HANA Asset Management — Best for SAP-Standardized Operators

SAP S/4HANA Asset Management (the successor to SAP Plant Maintenance) is the strongest oil and gas CMMS for operators standardized on SAP across ERP, supply chain, and finance. Native integration with the other S/4HANA modules removes the middleware other platforms need for ERP handshakes: work orders flow from financial controls through procurement to execution and back into financial reporting without integration friction. For operators where SAP is the corporate standard, this integration depth typically outweighs Maximo's deeper HSE feature set.

SAP's oil and gas positioning covers upstream, midstream, downstream, and oilfield services, with asset management and an environment, health, and safety management application in its industry portfolio. SAP S/4HANA Cloud for upstream oil and gas, co-developed with Accenture, has been generally available since March 2020; SAP says its preconfigured processes were defined with a consortium of BP, Chevron, ConocoPhillips, Equinor, and Shell. SAP names no oil and gas regulator, no API practice, and no PSM-specific workflow on the pages checked, so the regulatory fit is configuration work.

The historian path has changed. SAP Manufacturing Integration and Intelligence (MII), which this guide and many SAP shops treated as the PI-to-S/4HANA bridge, reaches end of mainstream maintenance on December 31, 2027, with paid extended maintenance to 2030 and SAP Digital Manufacturing as the successor. Operators planning condition-based maintenance in S/4HANA should look at SAP Asset Performance Management, which SAP sells with embedded IoT through Cumulocity IoT and closed-loop integration back to SAP EAM, or at a direct PI connector, and should not start a new MII project.

Best for: Oil and gas operators standardized on SAP S/4HANA across ERP and supply chain, where native integration outweighs industry-specific feature depth.

Pricing: Custom enterprise pricing as part of SAP S/4HANA licensing; SAP Asset Performance Management is metered in blocks of 100 objects per year. SAP publishes no list prices for either.

3. AVEVA Asset Performance Management — Best Asset Performance Layer for Downstream and Process Operations

AVEVA is the strongest asset performance pick for refineries, petrochemical plants, and process operations, and this entry now says plainly what AVEVA's own pages say: AVEVA sells no CMMS or EAM. Its APM FAQ lists integration with existing CMMS, ERP, and data historian systems as a feature, and its Asset Strategy Optimization page states that the product is not a maintenance planning or scheduling tool and that the strategies it produces are executed through existing EAM or maintenance planning systems. An operator runs AVEVA APM over Maximo, SAP, Octave, or another work order system; the two platforms at ranks 1 and 2 are the usual partners.

Within that role the depth is real. Asset Strategy Optimization applies FMEA, RCM, and risk-based inspection, with RBI powered by Amethyste for pressure vessels, heat exchangers, and piping and a built-in root cause analysis module. AVEVA Predictive Analytics (the former PRiSM) runs AI anomaly detection on PI data, AVEVA Mobile Operator (the former IntelaTrac) handles operator rounds, and Unified Operations Center brings production, maintenance, and engineering data into one view. The historian is AVEVA's own: PI System, Plant SCADA, and Enterprise SCADA sit in the same portfolio, so PI integration is native. AVEVA's downstream page says more than 300 refineries use its downstream software and names BP (analyst answers in about three minutes instead of seven hours, per BP's downstream CIO), MOL (US$500 million in improved margins), ENEOS (a refinery digital twin for maintenance information), Suncor (refinery maintenance and turnarounds), Saudi Aramco, and TotalEnergies; its APM page adds PETRONAS (US$17.4 million in annual savings) and SCG Chemicals (99 percent plant reliability). All are vendor figures.

The trade-off is fit outside the AVEVA ecosystem and the missing CMMS layer. Operators on Honeywell or Emerson control systems can still run APM on PI data, but the integration story AVEVA sells is strongest where System Platform and PI are already the standard. AVEVA is a member of the Schneider Electric group.

Best for: Downstream refineries, petrochemical operations, and process plants standardized on AVEVA System Platform and AVEVA PI System that already run a CMMS or EAM for work execution.

Pricing: Custom enterprise quotes through AVEVA's Flex subscription program, a credits-based system across cloud, hybrid, and on-premises products. AVEVA publishes no list prices.

4. Octave Attune EAM — Best Mid-Market Choice for Oil and Gas

Octave Attune EAM is the product this guide listed as Infor EAM in April. Infor sold its EAM business to Hexagon in 2021 (announced July 6 for about US$2.75 billion, completed October 1, with nearly 3,500 customers), Hexagon renamed it HxGN EAM, and Hexagon then spun its asset lifecycle software out as Octave Intelligence plc, a Huntsville, Alabama company that listed on Nasdaq Stockholm on May 25, 2026 and on Nasdaq New York (OCTV) on May 28, 2026. Octave's product page carries the line "Formerly HxGN EAM" and says the core functionality is unchanged. Readers who still see Infor EAM in RFP templates are looking at this product.

Attune EAM is a cloud-based EAM with asset hierarchies and risk calculations, work order management with built-in calibration, requisitions and purchase orders, reliability-centered maintenance, a mobile app for work requests, notifications, and inspections, 2D CAD and 3D digital twin support, and an embedded AI assistant. It is the only platform on this list whose product page names linear assets as a category, with geospatial tracking and audit-ready tracking tools, and Octave's oil and gas brochure names compressors, valves, pumps, and motors on pipelines, platforms, and wells, condition monitoring with alerts, EH&S, emissions and energy tracking with regulatory non-compliance alerts, and online and offline mobility. Octave's oil and gas page covers upstream, midstream, and downstream and lists Ecopetrol and a midstream oil and gas operator among its case studies; its companion Attune APM product names AVEVA PI and OPC integration with connectors to Attune EAM, Maximo, and SAP. Octave names no regulator, no API practice, and no PSM workflow on the pages checked.

The trade-off is positioning. Octave is a newly independent company with a broad portfolio (engineering design, operations management, cybersecurity, and quality alongside EAM), and its oil and gas industry page leads with project and design tools, with Attune EAM reached through Attune APM. Mid-market operators get a mature EAM with linear asset support; they should ask Octave directly for oil and gas references on Attune EAM itself.

Best for: Mid-market upstream and midstream operators that want a mature EAM with linear asset and mobile support without Tier 1 enterprise complexity.

Pricing: Custom enterprise quotes; Octave publishes no list prices.

5. Bentley AssetWise Reliability — Best Asset Integrity and Risk-Based Inspection Layer

Bentley's entry has changed the most. The April version described AssetWise as a pipeline and linear asset platform with PHMSA reporting, inline inspection results, cathodic protection, and right-of-way management; none of that appears on Bentley's current pages, and Bentley names no pipeline operator as a customer. What Bentley sells to oil and gas today is AssetWise Reliability, asset performance management software for building inspection and maintenance programs in a digital twin, alongside AssetWise ALIM for engineering information management. Like AVEVA's APM, it runs over the operator's EAM: Bentley says its connector services tie AssetWise to SAP and IBM Maximo, and the work orders live there.

The integrity depth is specific. AssetWise Reliability applies RBI (identifying inspection strategy for pressure systems, tanks, and other containers and managing inspection due dates from degradation rates), RCM2 that Bentley states is fully compliant with SAE JA1011 and JA1012, FMEA, and safety instrumented function analysis, with loss-of-containment scenario analysis against ISA 84, IEC 61511, IEC 61508, and IEC 61882, HAZOP, SIL, and layer-of-protection analysis, and strategy development studies kept under version control as what Bentley calls an auditable, regulator-ready reference. bp standardized on AssetWise ALIM across all projects, production, and manufacturing assets in November 2023 and began a global AssetWise Reliability rollout across eight regions after its Clair asset in the North Sea; OQ Upstream reports a 25.7 percent reliability gain on AssetWise. Both are vendor-published references.

The trade-off is the same as AVEVA's: no CMMS. Buyers who came to this guide looking for pipeline integrity management (inline inspection data, cathodic protection surveys, 49 CFR 192 and 195 integrity management plans) will not find it named by Bentley or by any other vendor on this list, and should ask each vendor how those records reach the work order system.

Best for: Operators with mechanical integrity, RBI, and safety instrumented system programs that need an auditable analysis layer over Maximo or SAP, with refining, offshore, and well integrity as the named use cases.

Pricing: Request pricing on bentley.com; hosted by Bentley or on-premises. Bentley publishes no list prices.

6. eMaint — Best for Smaller Operators and Service Companies

eMaint serves the position the Tier 1 platforms cannot reach economically: smaller upstream operators, oilfield service companies, well service contractors, and equipment rental companies that need audit-ready documentation without Maximo or SAP overhead. eMaint's oil and gas page covers upstream, midstream, and downstream and names EPA, FERC, ISO, and OSHA audit preparation, audit trails built from asset histories, work order completion records, and electronic signatures, management of change as a tracked record, offline mobile work orders with QR-code requests, multi-site and multilingual settings, and condition monitoring that gathers vibration, temperature, and pressure data from sensors and SCADA systems and triggers work orders when parameters exceed thresholds. eMaint is a Fluke business (Fluke is a Fortive company), and its condition monitoring integration is Fluke's own wireless sensors.

Named oil and gas customers on eMaint's page are Cactus Drilling Company, Anaergia, AFD Management Services (which maintains petroleum gas assets across the Bahamas), and Next Wave Energy Partners (more than 18,500 assets at a new chemical plant), with a 100 percent on-time work order completion figure attributed to an oil and gas customer; all are vendor figures. Implementation is framed as 30, 60, and 90-day milestones.

The trade-off is depth. eMaint names no PSM framework, no API practice, no PHMSA or BSEE workflow, and no PI connector; its SCADA and sensor integrations are the historian path, and risk-based inspection is a configuration exercise. For operators with significant PSM exposure or large asset bases, the Tier 1 platforms remain the safer choice. For smaller operators and service companies, eMaint balances industry-relevant features against operational accessibility.

Best for: Smaller upstream operators, oilfield service companies, well service contractors, and equipment rental operators needing oil and gas capability without Tier 1 complexity.

Pricing: Quoted. eMaint's pricing page lists a Professional plan (three-user minimum) and an Enterprise plan (five-user minimum), both prepaid annually with contact-for-pricing. The $33 Team price this guide carried in April is no longer published.

7. MaintainX - Best for Field Execution at Service Companies

MaintainX rounds out the lineup for upstream service companies and smaller midstream operators where mobile field execution is the primary operational priority. The platform's mobile app is the strongest in the broader CMMS market for usability in challenging environments - clean interface, real-time messaging within work orders, photo capture, offline capability, and rapid technician adoption. For operations where pumpers, lease operators, or pipeline technicians complete work orders at remote sites with intermittent connectivity, MaintainX often outperforms heavier platforms on the variable that determines whether the CMMS produces useful data.

The Premium tier supports the asset hierarchy, PM scheduling, and parts inventory needed for serious oil and gas operations. Custom inspection forms can approximate PSM and MI workflows for operations without strict regulatory exposure. The platform integrates with most major IIoT platforms and ERPs through open APIs, which suits service companies that integrate their CMMS with customer systems.

The trade-off is in oil and gas-specific functionality depth. MaintainX does not include native PSM frameworks, API standard support, or mechanical integrity workflows. For operations subject to OSHA 1910.119 with significant compliance exposure, the configuration overhead to approximate these workflows is substantial. For service companies, well service operators, and smaller midstream operators where field execution speed matters more than regulatory framework depth, MaintainX often delivers better operational value than heavier platforms.

Best for: Upstream service companies, well service contractors, pumping companies, and smaller midstream operators where mobile field execution speed is the operational priority.

Pricing: Free (Basic), $20/user/month (Essential), $65/user/month (Premium), with custom Enterprise pricing.

Oil and Gas CMMS Comparison Table

Choosing by Segment: Upstream, Midstream, Downstream

Oil and gas CMMS selection differs across the three industry segments. Each has distinct operational realities that change the platform fit.

Upstream Operations

Upstream operations span exploration, drilling, and production. Asset bases include drilling rigs, production wellsites, gathering systems, surface facilities, and remote infrastructure across geographically dispersed lease positions. CMMS requirements emphasize mobile and offline capability for remote field operations, integration with production data systems, well service workflow support, and PSM compliance for processing facilities (drilling and well servicing themselves sit outside 1910.119). The named upstream references on vendor pages are SAP's consortium of BP, Chevron, ConocoPhillips, Equinor, and Shell for its upstream cloud solution, IBM's Petroleum Development Oman deployment, and AVEVA's work with ENI, PETRONAS, ExxonMobil, SLB, and BP and KBR on PI System, predictive analytics, and digital twins. Mid-market operators run Octave Attune EAM or Maximo Application Suite as SaaS. Service companies and smaller operators often deploy MaintainX or eMaint for the mobile field execution advantage.

Midstream Operations

Midstream covers gathering, transmission, storage, and distribution between production and downstream processing. The defining characteristic is linear asset management at scale: pipelines spanning hundreds or thousands of miles, transmission systems under PHMSA integrity management rules (49 CFR 195.452 for hazardous liquids, Part 192 Subparts O and P for gas transmission and distribution), and storage facilities with their own integrity programs. No vendor on this list names PHMSA, inline inspection, or cathodic protection on the pages checked. IBM names pipelines, storage terminals, and transportation assets with spatial capabilities and SCADA integration; Octave's Attune EAM names linear assets with geospatial tracking and lists a midstream oil and gas case study; Maximo and SAP serve large midstream operators with mixed asset portfolios. Pipeline integrity management workflows (inline inspection or smart pigging, cathodic protection, integrity assessment) remain operationally critical, so midstream buyers should make every vendor show how inline inspection and cathodic protection results reach the work order system.

Downstream Operations

Downstream covers refining, petrochemicals, and product distribution. Operations are characterized by complex process plants with thousands of assets per facility, continuous operations, PSM and EPA RMP exposure, and dependence on process historians (AVEVA PI System, AspenTech InfoPlus.21) for process data. AVEVA says more than 300 refineries use its downstream software; its APM runs over the refinery's CMMS or EAM, which is usually Maximo or SAP. Bentley's AssetWise Reliability covers the RBI and safety instrumented system analysis the same plants run. The boundary between APM and CMMS is more porous downstream than in other segments because process data drives maintenance decisions in ways that are less common upstream or midstream.

How to Choose the Right Oil and Gas CMMS

Beyond segment fit, four questions determine the right platform for a specific operation.

1. What is your PSM exposure?

Operations subject to OSHA 1910.119 with a significant PSM compliance burden should start from what each vendor puts in writing. IBM names permit to work, lockout/tagout, management of change, pre-start safety reviews, incident investigation, and contractor safety, and says its control of work strengthens process safety. AVEVA's Asset Strategy Optimization names RBI, FMEA, and RCM and simulates strategies against HSE compliance. Bentley names RBI, RCM2, FMEA, SIF, HAZOP, and the ISA 84 and IEC 61511 safety standards. Octave names EH&S, compliance with regulations and codes, and asset integrity. eMaint names management of change and OSHA and EPA audit preparation. SAP names an EHS management application. None of the seven names OSHA 1910.119, API 510, 570, or 653, PHMSA, or BSEE on the pages checked, so mapping a vendor's workflow to a PSM element is the buyer's job during procurement. Operations with limited PSM exposure (some upstream production, oilfield services, equipment rental) have more flexibility and can use eMaint or MaintainX with configured workflows. The PSM gap in horizontal CMMS platforms is real and consequential, but it is binding only for operations where regulatory exposure makes it operationally critical.

2. What is your ERP standardization?

Operators standardized on SAP S/4HANA across ERP, supply chain, and finance should evaluate SAP S/4HANA Asset Management as the default choice because the integration eliminates middleware overhead. Operators on Oracle or other ERPs should evaluate Maximo and Octave Attune EAM: Octave's own FAQ describes maintenance costs flowing from EAM into ERP financials and ERP procurement linking to EAM work orders and inventory, and both vendors should be asked for their current adapter lists. Mixed-ERP operators should prioritize platforms with strong integration capabilities over platforms tied to a single ERP standard.

3. What is your historian environment?

Operations standardized on AVEVA PI System (most of the industry) should prioritize platforms with native or proven PI integration. AVEVA owns PI, so its APM integration is native. IBM's Maximo Monitor 9.1 release notes name an improved AVEVA PI historian integration. Octave's Attune APM names AVEVA PI and OPC integration. SAP's path through MII closes when MII leaves mainstream maintenance at the end of 2027, which leaves SAP Asset Performance Management's embedded IoT or a direct connector. eMaint names SCADA and sensor integration and no PI connector; Bentley names none on the pages checked. Operations using AspenTech InfoPlus.21 or another historian should evaluate integration paths during procurement. The historian integration is one of the most consequential CMMS selection factors and one of the most often underestimated.

4. What is your operational scale?

Major operators with 50,000+ assets and complex multi-country operations should evaluate Maximo and SAP as the default choices. Mid-market operators with 1,000 to 25,000 assets should evaluate Octave Attune EAM, Maximo Application Suite as SaaS, or AVEVA APM over their existing CMMS, depending on segment fit. Smaller operators with under 5,000 assets should evaluate eMaint, MaintainX, or scaled-down Infor EAM deployments. (Infor EAM is now Octave Attune EAM, and IBM's Essentials tier, capped at 25 users, is the other scaled-down option.) Trying to deploy enterprise platforms at smaller scale frequently produces overengineered implementations that consume budget without proportionate operational value.

The Honest Middle Ground

Oil and gas CMMS is a category where the wrong choice creates regulatory and safety risk on top of operational inefficiency. A few honest assessments worth flagging.

Operators sometimes underbuy on PSM capability. Upstream production operations subject to PSM (anywhere processing holds threshold quantities of highly hazardous chemicals) sometimes deploy mid-market CMMS without validating PSM workflow support. The gap surfaces during PSM compliance audits or, more dangerously, during incidents. The right approach is honest validation of PSM workflow fit during procurement.

Operators sometimes overbuy on enterprise complexity. Mid-market operators occasionally deploy Maximo or SAP because their parent company or major investor standardized on them, ending up with implementations that take years and produce capabilities the operation does not use. Right-sizing matters. Octave Attune EAM, Maximo Application Suite SaaS at the appropriate tier, or AVEVA APM over an existing CMMS often deliver better value than full enterprise deployments at mid-market scale.

Two of the seven platforms here are not CMMS. AVEVA Asset Performance Management and Bentley AssetWise Reliability are analysis layers that decide what inspection and maintenance should happen and hand the work to an EAM. Both vendors say so on their own pages. They earn their places because refineries and offshore operators run them alongside Maximo or SAP, but a buyer with no work order system yet needs ranks 1, 2, 4, 6, or 7 first.

Pipeline operators should not assume any CMMS handles pipeline integrity. Pipelines have operational characteristics that do not fit facility asset hierarchies: assets are continuous, location is a milepost, and integrity management spans hundreds of miles of variable terrain. Octave is the only vendor here whose product page names linear assets, and IBM names pipelines with spatial capabilities; neither names PHMSA integrity management, inline inspection, or cathodic protection. Make the vendor demonstrate linear referencing and the inline-inspection-to-work-order path before signing.

Service companies sometimes deploy operator platforms. Oilfield service companies and well service contractors are not the same operational profile as oil and gas operators. Operators own facilities and assets; service companies execute work at customer locations across many operators. CMMS platforms designed for operator workflows often poorly serve service company workflows. MaintainX, eMaint, and similar mid-market platforms generally fit service companies better than Tier 1 operator-focused platforms.

Related Guides

• Best CMMS Software 2026: Independent Comparison of 7 Platforms

• Best CMMS for Manufacturing Plants 2026

• Best CMMS for Healthcare Facilities 2026

• Best EAM Software for Oil and Gas 2026

• CMMS vs EAM: What's the Difference, and Which One Do You Need?

Sources

• IBM: Oil and gas asset management with Maximo Application Suite; Health, safety and environment (HSE) software with IBM Maximo; Pricing, IBM Maximo Application Suite; Release Notes for Maximo Monitor 9.1.0

• SAP: SAP and Accenture launch upstream oil and gas solution, March 2020

• Infosys: Navigating the post-SAP MII era, 2026 white paper

• AVEVA: Downstream oil and gas solutions; Upstream oil and gas industry solutions; Asset performance management software solutions; AVEVA Asset Strategy Optimization

• Octave: Octave Attune EAM; Oil and gas industry solutions; Octave Intelligence plc Listed on Nasdaq New York, May 28, 2026

• Hexagon: Hexagon to acquire Infor's EAM business, July 6, 2021

• Bentley Systems: AssetWise Reliability; bp Selects AssetWise Lifecycle Information Management and AssetWise Reliability, November 2, 2023 (Business Wire)

• eMaint: Oil and Gas CMMS Maintenance Software; Pricing

• MaintainX product documentation - getmaintainx.com

• OSHA: 1910.119, Process safety management of highly hazardous chemicals

• EPA: Risk Management Program (RMP) Rule

• BSEE: 30 CFR Part 250, Subpart S, Safety and Environmental Management Systems (eCFR)

• PHMSA: Overview: Integrity Management

• API: Refining standards catalog, 2022 (API 510, 570, 653, RP 580, RP 581)

Last updated: October 22, 2026. This guide is editorial analysis by Reliable Magazine. No vendor paid for ranking consideration or editorial input.