US drillers are cautiously increasing oil output as prices remain high, a shift from previous growth surges. This current expansion is driven by efficiency gains rather than massive capital investment. While overall gains have been modest, they defy earlier expectations of flat or declining production, particularly in the context of persistent capital discipline and fears of an oversupplied market.

Capital discipline and operational efficiency are key characteristics of the US shale industry. Operators have managed to produce more without substantial increases in capital expenditure. Although few are signaling higher spending for the current or upcoming year, there are indications of increased US upstream activity in the near term, with a continued emphasis on efficiency leading to incremental output gains. For example, the Baker Hughes oil rig count has risen by approximately 12% since late April, and Primary Vision's frack spreads tally is up 33 units year-on-year.

Most of the production growth so far this year has come from private shale companies. However, larger public operators are expected to play a more significant role in the next phase of growth. Andy Hendricks, CEO of Patterson-UTI, noted that the current crude price of around $70 per barrel through the end of 2027 supports a higher pace of drilling and completion activity than is currently observed. Similarly, Sam Sledge, CEO of ProPetro, suggested that larger public operators are using the ongoing Mideast conflict as an opportunity to accelerate their 2027 planning, capitalizing on the elevated oil prices.

Analysts from Citi, such as Scott Gruber, also project increased activity. They anticipate that higher oil prices, fueled by the Middle East conflict, will prompt major shale producers to add drilling rigs in the latter half of this year, potentially increasing output by more than 100,000 barrels per day by 2027. Combined with robust expansion from private operators and existing plans from some oil majors, US shale could collectively add about 815,000 barrels per day to the global market by 2028.