Pertamina Hulu Rokan Zone 4 recorded oil production of 27,500 barrels per day (BOPD) in the first half of 2026 as the company strives to improve the performance of oil and gas fields that have entered the mature phase.
PHR Zone 4 General Manager Djudjuwanto said in a written statement received in Palembang on Tuesday that in addition to oil production, his party also recorded gas production of 506 million cubic feet per day during the period from January to June 2026.
"Throughout the first semester of 2026, PHR Zone 4 will continue to optimize various strategies to maintain and increase oil and gas production to support national energy security," he said.
He explained that as of June 30, 2026, his team had completed 27 planned development well drilling projects. These activities resulted in additional oil production of 1,549 barrels per day, equivalent to 125 percent of the year-to-date target for oil production from development drilling in the 2026 Work Program and Budget.
One of the main challenges in managing oil and gas fields that have been in production for a long time is the natural decline in production due to reduced reservoir pressure and depletion of hydrocarbon reserves.
To overcome this condition, PHR Zone 4 implemented various strategies, one of which was the step-out drilling method, namely drilling outside areas that have been proven productive to determine the potential sustainability of reservoirs in the surrounding area.
"The big idea behind the drilling carried out by PHR Zone 4 is that each drilling operation not only generates production but also opens up opportunities to discover new reserves to support the company's sustainable operations and future national energy security," he explained.
In 2026, PHR Zone 4 plans step-out drilling at four Pertamina EP fields: Adera Field, Prabumulih Field, Ramba Field, and Limau Field. The program is targeted to increase oil production by 209 barrels per day and gas by 0.04 million standard cubic feet per day.
In addition, the company is also implementing a dual completion method on four wells in the Adera Field and Prabumulih Field. This method allows production from two reservoirs through a single well, increasing field development efficiency.
