Chevron Lifts Exploration Budget 50% to $1.5 Billion in Frontier Push

Chevron is raising its exploration budget by 50% this year, with spending set to top $1.5 billion, up from just under $1 billion in 2025 — the clearest signal yet that the U.S. supermajor is betting big on frontier drilling again.

The number came from Kevin McLachlan, Chevron's vice president of exploration, who told the Financial Times in September: "We needed to increase the spend because we just didn't have the exposure."

McLachlan knows frontier risk intimately. Chevron recruited him from TotalEnergies, where he oversaw work on Venus — one of the biggest recent discoveries in a frontier area, sitting in Namibia's offshore Orange Basin. Now he is running the program designed to pull Chevron out of an exploration rut.

Where is Chevron drilling?

After years of concentrating on the U.S. Gulf of Mexico and the Permian shale basin, Chevron is widening its lens. South America, Africa and the Eastern Mediterranean now anchor the upstream agenda, with reserve-replacement and production-growth targets in:

• Guyana
• Angola
• Namibia
• Nigeria
• Guinea-Bissau
• Equatorial Guinea
• Egypt
• the Eastern Mediterranean

The pivot already shows results. Chevron has announced discoveries in West Africa in recent months, in both Nigeria and Angola. By the end of the year, the company plans to spud the Nabba-1X exploration well offshore Namibia — part of what it describes as a high-impact, multi-well campaign across the region.

"Every successful well adds information, confidence and potential pathways for future growth," McLachlan said of the Angola discovery and the broader campaign.

The scale of the shift is measurable. About 50% of the exploration budget now goes to undeveloped frontier basins, McLachlan told The Wall Street Journal this month — up from 20% a few years ago. Two years ago Chevron drilled roughly 10 exploration wells per year. Its 2027 program includes 20 exploration wells and possibly up to six appraisal wells.

The takeaway: Chevron isn't just spending more — it has doubled the share of that money pointed at unproven basins.

Why the turn to frontier risk now?

The strategy got a push from geopolitics. The Iran war and the disruption of oil and gas flows through the Strait of Hormuz exposed the cost of leaning on a single region for large supply volumes while global oil demand keeps growing.

"The Middle East conflict has highlighted the concentration risk involved in focusing on geopolitically unstable regions," analysts at Wood Mackenzie said earlier this year.

"The need for portfolio renewal and diversification is raising upstream firms' appetite for exploration risk," they added, noting that companies are taking positions earlier in their exploration targets.

Supermajors also face a simpler arithmetic: reserves must grow to offset declines at existing assets over time. And this year's windfall profits — driven by the oil and gas price spike after the Iran war — give exploration budgets room to rise across the sector.

How did the CEO frame it?

The exploration turnaround has a before-and-after quality in CEO Mike Wirth's own words.

In August last year, on the Q2 2025 earnings call, Wirth was blunt: "I'm not happy with the results out of exploration over the last few years, but I want to acknowledge our exploration team has been operating in a pretty narrow range."

A year later, at the Q2 2026 call, the tone had flipped. Chevron has built "the largest and highest quality opportunity set that we've had in years, probably in my time in this role," Wirth said.

The inventory backs the claim. Chevron has increased its exploration acreage by 35% over the past year, Wirth told analysts, adding: "We haven't had this deep of an inventory of opportunity."

A third of more acreage, twice the frontier share, and a well count set to double — that is the anatomy of the rebuild.

What happens next?

The program McLachlan is building starts with data. "So we've increased our spend on seismic data, which is the enabling piece of how to generate prospects, without which you can't generate ideas," he told the FT.

Chevron has been aggressively adding exploration acreage over the past two years, and the company considers that early positioning vindicated by this year's market turmoil.

The watch item is the Nabba-1X well in Namibia, due to spud by year-end. If it lands in the Orange Basin tradition of its predecessor's Venus find, Chevron's $1.5 billion exploration bet will look cheap.

By Elena Vasquez