Indonesia upstream oil output and investment outlook

The problem is structural. Under the current framework, the government regulates the sector, while SKK Migas oversees cooperation contracts but does not itself invest. That leaves new reserves and output growth dependent on the willingness of state and private players to commit capital in a highly competitive global market. In other words, Indonesia wants control without fully embracing the entrepreneurial risk that usually comes with oil and gas growth.

That model has produced only limited success. Oil output has been held around 500,000 to 600,000 barrels per day over the past five years, but merely slowing decline is not the same as creating new supply. With average crude decline rates running at 22.3% a year from 2020 to 2025 and gas declining 12.0% annually, the math is unforgiving. Investors should understand that a country with shrinking reserves and aging fields eventually has to choose between opening the door wider to capital or accepting lower output over time.

The article’s core investment case is not about bureaucracy; it is about whether Indonesia can build institutions with the appetite to drill, acquire and develop assets like a company would. Pri argues that two entities matter most: Pertamina, through its upstream arm PT Pertamina Hulu Energi, and a proposed special upstream business body, or BUK Migas, in the draft oil and gas law.

Pertamina is already the backbone of the system, contributing about 60% to 65% of Indonesia’s oil production and 30% to 35% of gas lifting. It posted a reserve replacement ratio of 117% in 2024, which looks healthy on paper. But its reserve-to-production ratio of 7.3 years still lags the 9- to 13-year range seen globally, and that tells investors the company must keep finding and converting resources just to hold its position. Its challenge is especially clear in low-quality reservoirs and unconventional gas, where the prize is large but the capital intensity is high.

Those opportunities are not trivial. The piece points to more than 3 billion barrels of oil in place across 70 fields in low-quality reservoirs, with big assets in Rokan, Bravo ONWJ and Lima. It also highlights unconventional potential in Rokan’s sub-basins, where gas and oil in place could be substantial. The point for long-term investors is simple: if Indonesia can unlock even a portion of these resources, the country could extend its production life and reduce import dependence.

That is why the discussion around BUK Migas matters. If designed properly, it could transform the upstream sector from a “pseudo state-led market” into a more competitive state-led market, with the ability to invest, take participating interests, acquire assets and even pursue mergers and acquisitions regionally. If designed poorly, it would just add another layer of bureaucracy. For investors, that difference is everything, because capital flows to institutions that can move quickly, share risk and execute.

The bigger economic stakes are hard to miss. Indonesia imports a large share of the fuel it needs, so lower domestic output feeds directly into the trade balance, fiscal pressure and exposure to global crude swings. When oil prices jump on geopolitical tensions, as they have amid the US-Iran conflict, countries that rely too heavily on imported supply feel the pain first. Stronger domestic upstream investment would not eliminate that vulnerability, but it would make the economy more resilient.

There is also a portfolio lesson here. Energy investors should not treat Indonesia as a pure headline trade. The opportunity, if it comes, is multi-year: reserve growth, improved recovery rates, better capital discipline and the slow conversion of prospective resources into proven reserves. Those are the kinds of shifts that can compound for years, not quarters.