Financial research concept

Midstream Gross Operating Margin

Enterprise's non-GAAP gross operating margin measures operating contribution before certain items under its defined reconciliation framework.

By Lee BaileyPublished Sep 25, 2026

Research context

See what supports this page, how current it is, and where comparable or historical context is available.

Research date: Sep 25, 2026Use the dated article and cited sources for the definition, examples, and stated limitations.
Operating-model context: 18 connected conceptsPart of the reviewed Midstream Energy Infrastructure Economics; issuer definitions remain distinct where disclosed.
Company examples: 1 reviewed companyRelationships reflect supported examples, not a normalized cross-company KPI ranking.

The non-GAAP measure was $2.764 billion above GAAP operating income
The difference is a scale comparison, not a one-line reconciliation
Margin contribution needs the physical network underneath it
Part of the Midstream Energy Infrastructure Economics
See It in Company Research
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Midstream Gross Operating Margin is Enterprise Products Partners' issuer-defined non-GAAP measure of operating contribution under its reconciliation framework.

Enterprise reported $10.030 billion of gross operating margin for 2025.

The non-GAAP measure was $2.764 billion above GAAP operating income

Enterprise reported $7.266 billion of GAAP operating income for the same year.

The simple difference is $2.764 billion, and GAAP operating income is about 72.4% of the reported gross operating margin.

The difference is a scale comparison, not a one-line reconciliation

Gross operating margin and GAAP operating income have different definitions. Subtracting one from the other does not identify the individual depreciation, corporate, impairment, gain/loss, or other reconciling items.

Investors should use Enterprise's formal reconciliation rather than treating $2.764 billion as a single expense bucket.

Margin contribution needs the physical network underneath it

The operating contribution comes from a network spanning Liquids Pipeline Transportation Volume, gas processing, fractionation, marine terminals, storage, and petrochemical activity.

That makes gross operating margin useful as a consolidated operating lens, but not as a substitute for the throughput and contract metrics that explain how the network is being used.

Primary sources: Enterprise Products 2025 earnings release and Enterprise Products 2025 Form 10-K.

Part of the Midstream Energy Infrastructure Economics

Connect gas processing, NGL fractionation, liquids and natural-gas transportation, marine terminals, storage footprint, petrochemical production, and gross operating margin across an integrated midstream network.

Browse the full operating model in Company Analysis →

Where this concept fits

Petrochemical throughput and margin conversionCurrent relationship
Propylene production and petrochemical/refined-products pipeline volumes add manufacturing and specialty-product activity, while gross operating margin shows the issuer-defined non-GAAP operating contribution produced across the integrated network.
Midstream Gross Operating MarginCurrent conceptPetrochemical and Refined Products Pipeline Volume Propylene Production Volume
Gas processing and NGL conversion
Processing inlet volume shows physical rich-gas flow, fee-based processing volume isolates service activity, equity NGL-equivalent production captures commodity-linked processing exposure, and fractionation volume shows the downstream separation of mixed NGLs into purity products.
Equity NGL-Equivalent Production Volume Fee-Based Natural Gas Processing Volume Natural Gas Processing Inlet Volume NGL Fractionation Volume
Pipeline, terminal, and storage network
Commodity-specific pipeline and marine-terminal volumes show throughput by service layer, equivalent pipeline volume provides a network-wide energy-equivalent view, and pipeline mileage plus liquids and gas storage capacity describe the physical footprint that supports those flows.
Crude Oil Marine Terminal Volume Crude Oil Pipeline Transportation Volume Equivalent Pipeline Transportation Volume Liquids Pipeline Transportation Volume Midstream Liquids Storage Capacity Marine Terminal Volume Natural Gas Pipeline Transportation Volume Midstream Natural Gas Storage Capacity NGL Marine Terminal Volume NGL Pipeline Transportation Volume Midstream Pipeline Mileage

See It in Company Research

These companies are examples of how the concept is reported or discussed in public filings. Definitions can differ by issuer; these links open company research rather than a normalized metric comparison.

EPDOpen operating-model research →18 of 18 reviewed concepts in Midstream Energy Infrastructure EconomicsPetrochemical throughput and margin conversion3 of 3 bridge concepts supportedContinue through this bridge:Petrochemical and Refined Products Pipeline Volume Propylene Production Volume

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Compare public companies

Compare Enterprise's $10.030B non-GAAP gross operating margin with $7.266B of GAAP operating income while using the issuer's formal reconciliation for the difference.

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