Focus of U.S. Oil Production Growth Shifts

Shift from shale oil to offshore projects in the Gulf of Mexico

For more than a decade, shale oil has been the core driver of U.S. oil production growth. Now, driven by technological advancements, the maturation of shale reservoirs, and federal “pro-oil” policies, the focus of U.S. oil production growth is shifting toward offshore oil.

Earlier this year, the U.S. Energy Information Administration (EIA) projected that daily oil production from U.S. Gulf of Mexico fields could rise from the current 1.8 million barrels to 2.4 million barrels as early as 2027. The Bureau of Ocean Energy Management (BOEM) issued a similar forecast. Both agencies attributed this growth to three key factors: streamlined federal permitting processes providing policy support, advances in offshore drilling technology improving economics and efficiency, and renewed industry investment appetite.

In October this year, BP announced a $5 billion investment in a new offshore project in the U.S. Gulf of Mexico, which holds recoverable reserves of approximately 350 million barrels of crude oil. BP stated that its Tiber-Guadalupe project, once operational, will increase its U.S. crude oil output by 80,000 barrels per day, aiming to push its total regional production above 1 million barrels per day. Earlier this year, BP also partnered with Chevron to discover hydrocarbons in the FarSouth exploration area of the Gulf of Mexico. A BP executive remarked, “The discovery in the FarSouth area demonstrates that the Gulf of Mexico remains a region of significant growth potential and opportunity for BP.” Indeed, the oil giant plans to raise its daily crude production in the Gulf of Mexico to 400,000 barrels by 2030.

Also this year, Talos Energy announced an oil and gas discovery in the Gulf of Mexico. Wood Mackenzie noted this was the most significant exploration success in the region since Shell's Whale field discovery in 2017. In a September report, Wood Mackenzie analysts estimated that Talos Energy's Daenerys field could reach a peak production of 65,000 barrels per day, and this discovery could spur further exploration in the area. Paul Goodfellow, CEO of Talos Energy, told Reuters: “We believe offshore oil production will play an increasingly important role in meeting global energy demand. The market is now beginning to question the long-term economic viability of onshore basins. Meanwhile, technological advances have unlocked vast deepwater hydrocarbon reserves.”

Goodfellow's statement precisely captures the current state of the U.S. oil industry. For years, shale oil was favored primarily because it could be brought online far faster than traditional offshore fields. Offshore projects require years of preparation and massive upfront investment, whereas shale wells can go from drilling to production in just a few months.

However, over time, the drawbacks of shale oil's “rapid deployment” model have become increasingly evident. Shale wells exhibit high initial production but also rapid decline rates, forcing producers to continuously drill new wells. As high-quality acreage becomes depleted, operators are moving into higher-cost areas and adopting more disciplined capital allocation strategies.

Some observers note that signs of declining well productivity are already emerging in certain shale plays, compounding the impact of rising costs on production growth plans. Coupled with ongoing volatility in global oil prices, the U.S. shale sector faces growing complexity. As one industry executive put it in the Dallas Fed Energy Survey: “Shale remains profitable at current oil prices. But with rising costs and policy uncertainty, we’d rather return capital to shareholders than take on high-risk expansion.”

In contrast, although high upfront costs remain inherent to offshore drilling, more advanced rigs now enable “ultra-deepwater drilling,” accessing previously unreachable reserves. Over the long term, the breakeven price for offshore fields could be significantly lower than the current average for shale. As Goodfellow noted earlier this year, even if international oil prices plummeted to $35 per barrel, Talos Energy's offshore projects scheduled for the second half of this year would still remain profitable. He added that offshore breakeven levels could potentially fall as low as $20 per barrel, compared to an average of $48 per barrel for onshore shale projects.

The EIA forecasts that Gulf of Mexico oil production will reach 1.89 million barrels per day this year and rise to 1.96 million barrels per day in 2026. Meanwhile, excluding Alaska, onshore U.S. oil production is expected to grow by only 190,000 barrels per day in 2025.

Some analytical firms, including Energy Aspects, argue that if the U.S. federal government continues its supportive policies, offshore production growth will eventually fully offset the decline in onshore output. The Trump administration prioritized domestic energy production and boosted offshore drilling activity by easing certain regulations, thereby enhancing operational efficiency. However, should a Democratic administration return to power, the outlook for U.S. offshore oil development could change significantly.