The Lower 48 is our largest business segment based on production, with high-quality positions in the U.S. unconventionals.

Current major focus areas for the Lower 48 include the Delaware and Midland Basins in the world-class Permian Basin, as well as the Eagle Ford and Bakken. 

For more information on our Lower 48 business, view p. 6 of the 2025 Annual Report filed with the U.S. Securities and Exchange Commission.

Map of Lower 48 operations

Lower 48 assets

Delaware basin asset in a fieldWe hold approximately 782,000 unconventional net acres in the Delaware Basin, spanning west Texas through southeast New Mexico. Current development activity targets prospects in the Avalon, Bone Springs, Wolfcamp and Woodford formations while balancing leasehold obligations and permit terms. We operated ten rigs and three frac crews on average during 2025, resulting in 176 operated wells drilled and 161 operated wells brought online.

Midland Basin asset in a fieldWe hold approximately 416,000 net acres in the Midland Basin, located in west Texas. The current development strategy is focused on full-field development utilizing multi-well pad projects targeting Barnett, Spraberry and Wolfcamp reservoir targets. We operated three rigs and one frac crew on average during 2025, resulting in 86 operated wells drilled and 94 operated wells brought online.

Eagle ford asset at sunsetWe hold approximately 489,000 net acres in the Eagle Ford, located in south Texas. The current focus is on full-field development, using customized well spacing and stacking patterns adapted through reservoir analysis. We operated seven rigs and three frac crews on average during 2025, resulting in 251 operated wells drilled and 264 operated wells brought online.

Bakken assets in a hilly regionWe hold approximately 799,000 net acres in the Williston Basin, located in North Dakota and eastern Montana. The primary producing zones are the Middle Bakken and Three Forks formations. We operated three rigs and one frac crew on average during 2025, resulting in 72 operated wells drilled and 98 operated wells brought online.

Permian asset in a fieldWe participate in partner-operated wells when they align with our investment decision criteria and development strategies. In 2025, we participated in partner-operated wells with varying working interests across our Lower 48 portfolio.

Two employees surveying an areaWe operate and own, with varying interests, centralized processing facilities in Texas and New Mexico in support of our Delaware, Eagle Ford and Midland assets.

Lower 48 at a glance

Production mix

Full-year 2025 production in the Lower 48 segment was 1,484 MBOED.

Lower 48 HSE Handbook

Click the link below to access the handbook. The handbook will also be available in the COP App Store.

prairie land

ConocoPhillips completes acquisition of Marathon Oil Corporation

Stories to highlight

Quail Ranch / Conservation in the Permian Basin

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conversation partners helping restore rangeland

From solar to substations / Elevating energy in the Delaware Basin

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Employee walking amongst the 150-acre solar grid

Midstream marvel / How the Beta Crude Connector serves Midland Basin producers

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beta crude connector

ConocoPhillips boosts processing efficiency with new Zia Hills Central Facility

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crew taking a group shot

Mike Guerrero / ‘Take care of your neighbor’

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group photo of volunteers

Lance Armstead / ‘It starts by helping one person at a time’

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Lance accepting a SPIRIT award