Analyst Takes

ConocoPhillips Buys Marathon for $22.5 Billion | Playing in the Big Leagues

byAndrew Dittmar
May 30, 2024

Making a major splash in corporate M&A, ConocoPhillips has agreed to buy Marathon Oil for $22.5 billion, inclusive of $5.4 billion in net debt. The transaction represents a pivot in U.S. shale M&A from deals focused on increasing exposure in a single key basin or play to acquiring a multi-basin operator. Conoco is leveraging its premium market valuation, which it shares with the majors, to strike a deal that will immediately boost its free cash flow profile and enhance its capital return program for investors. Enverus Intelligence® Research (EIR)* states that combining with Marathon will boost Conoco’s market cap to more than $150 billion, extending its lead as the largest independent producer and placing it broadly in the same scale as majors, above BP and behind Shell.

The deal also adds 2,600 net remaining drilling locations to Conoco’s portfolio, giving it about 13,000 net remaining untapped locations across its U.S. shale resource plus the Montney in Canada. EIR calculates about 30% of the total deal value is being paid for the Marathon shale inventory, after allocating value for existing production and Equatorial Guinea. In particular, the deal boosts Conoco’s position in the Eagle Ford by increasing its net location count by 85%. While the inventory already screens relatively attractively, Conoco will look to improve economics on these locations with operational efficiencies. Overall Marathon’s inventory life is shorter than Conoco’s existing portfolio at their stand alone drilling cadences, but given Conoco’s pre-deal inventory depth it was under less pressure to extend inventory life compared to smaller E&Ps.

Conoco will also likely look to sell off portions of the Marathon portfolio it views as non-core. A likely candidate is Marathon’s position in the Anadarko Basin. The position produces about 45,000 boe/d, has more than 400 net remaining drilling locations and would be a good fit for a company like the private Continental Resources.

For Marathon, the sale looks like a positive outcome for shareholders. In addition to the 15% premium, comparable to what other E&Ps have received in the wave of corporate consolidation, they will receive equity in a company with a top tier inventory life and strong capital return program further enhanced by the 34% boost in Conoco’s base dividend. Conoco further plans to buy back more than $20 billion in shares in the three years after the deal closes, more than covering the additional equity issued to purchase Marathon. Selling to Conoco provides a more certain positive reaction from Wall Street and future stability versus attempting a merger with another similar sized company, as was rumored to be in the works with Devon Energy last year. Given the increased regulatory scrutiny for oil and gas deals and Conoco’s existing scale, the deal is likely to receive close scrutiny from the FTC. Working in its favor for approval is the multi-basin nature of the Marathon assets versus concentrated regional exposure like the recent large combination in the Permian. The largest area of concentration –  and potential FTC concern –will be the Eagle Ford where Conoco will jump EOG to become the largest operator with 400,000 boe/d of gross operated production compared to EOG’s 300,000 boe/d gross operated production.

*About Enverus Intelligence®| Research

Enverus Intelligence® | Research, Inc. (EIR) is a subsidiary of Enverus that publishes energy-sector research focused on the oil, natural gas, power and renewable industries. EIR publishes reports including asset and company valuations, resource assessments, technical evaluations and macro-economic forecasts and helps make intelligent connections for energy industry participants, service companies and capital providers worldwide. See additional disclosures here.

Picture of Andrew Dittmar

Andrew Dittmar

Andrew Dittmar is a Director on the Enverus Intelligence® team. Andrew specializes in deal analysis, research and valuations for upstream assets. He focuses largely on placing individual deals into context around broader industry trends and outlooks, and has been quoted by Reuters, CNBC, the Wall Street Journal, Houston Chronicle and other media outlets. Andrew holds a BBA in Finance from Texas A&M University and a JD from The University of Texas School of Law.

Subscribe to the Enverus Blog

A weekly update on the latest “no-fluff” insight and analysis of the energy industry.

Related Content

Enverus and Pexapark Press Release - Enverus Enhances Global Trading & Risk Platform with Pexapark’s Benchmark Renewables Pricing and Market Intelligence
Energy Transition
ByCarson Kearl, Enverus Intelligence® Research (EIR) Contributor
December 3, 2025

Enverus Intelligence® Research (EIR) estimates an average load growth of about 12 GW in PJM by 2035, driven primarily by data center load expansion. PJM’s independent market monitor filed a complaint arguing the grid operator has clear authority to delay...

Enverus Press Release - Enverus releases “2025 Interconnection Queue Outlook” to navigate backlogged grid challenges
Power and Renewables
ByEnverus
December 2, 2025

October in ERCOT brought a mix of seasonal challenges—unusually warm temperatures early in the month, a sharp cooldown later, and notable variability in renewable generation. These conditions tested the accuracy of short-term and day-ahead forecasts, which are essential for power...

Enverus Press Release - Enverus honored as one of Alberta’s leading employers
Energy Analytics Operators
ByAlexandra Castaneda
December 1, 2025

Uncover hidden insights for Canadian heavy oil multilateral wells. Enverus PRISM provides comprehensive data to benchmark, evaluate designs, and identify emerging strategies like fishbone wells.

Enverus Intelligence® Research Press Release - Delayed data center demand response: How quickly can ISOs add new loads?
Business Automation
ByEnverus
November 28, 2025

Field ticketing is the backbone of service validation and payment in upstream oil and gas operations—but for many operators, it’s also a source of daily headaches. From paperwork overload to payment delays and coding disputes, the challenges are real and...

Enverus Press Release - The Denver Post names Enverus a Top Workplace in Colorado
Analyst Takes Trading and Risk
ByAl Salazar, Enverus Intelligence® Research (EIR) Contributor
November 24, 2025

Unlock insights into Canada's energy potential. Analyze policy shifts, pipeline development, and LNG Canada's role in meeting global energy demand.

Enverus Intelligence® Research Press Release - Wood you believe it? BECCS is taking off and creating overlooked, lucrative opportunities
Energy Market Wrap
ByEnverus
November 21, 2025

DT Midstream expands Haynesville, Texas gains CCS primacy, BOEM plans offshore lease sale, and Chevron boosts Permian recovery—get the full energy update.

Enverus Intelligence® Research Press Release - Waha prices expected to go negative (again)
Energy Transition
ByAshmal Dawoodani, Enverus Intelligence® Research
November 20, 2025

Blackstone announced last week it will invest about $1.2 billion to build the Wolf Summit Energy Project in West Virginia as forecast load growth in the region continues to drive demand for baseload generation. In contrast to earlier announcements of...

Enverus/RatedPower Press Release - RatedPower publishes 2025 Global Renewable Trends Report examining the green landscape
Energy Market Wrap
ByEnverus
November 14, 2025

Top energy stories: Baytex exits U.S., Chevron’s growth plan, Harvest LNG deal, Energy Transfer records, and Baker Hughes LNG order.

Enverus Press Release - Modeling EPA’s new Subpart W revision and the super-emitter wild card
Energy Analytics Geoscience Analytics
BySarah Peters Lancaster
November 14, 2025

Inventory scarcity is no longer a distant concern; it’s here, and it’s reshaping upstream strategies. As Tier 1 inventory dwindles and energy demand rises, operators face mounting pressure to discover, extend and optimize resources in increasingly complex environments. The subsurface...

Let’s get started!

We’ll follow up right away to show you a quick product tour.

Let’s get started!

We’ll follow up right away to show you a quick product tour.

Sign up for our Blog

Register Today

Sign Up

Power Your Insights

Connect with an Expert

Access Product Tour

Speak to an Expert