The Tungkal PSC has a long history dating back to the 1930's initially with the Dutch National Company, but it wasn't until 1997 that the Mengoepeh (MGH) field was discovered and the PSC was awarded to Asamera Oil. The PSC covers an area of 2,285 km2 (565,000 acres) in onshore South Sumatra and currently produces 1,030 bbl/d from the Talang Akar formation and contains 4.6 MMbbl 2P Reserves as of YE22.
The success of Mengoepeh-1 led to production commencing in 2004 reaching a peak rate of 2,500 bbl/d. As of December 31, 2022, the Mengoepeh field has produced 4.7 MMbbl, an estimated 6% recovery factor. More recently the Pematang Lantih (PLT) field was discovered and first production initiated in 2015, reaching a peak rate of 2,000 bbl/d by June 2018. As of December 31, 2022 the field had produced 1.8 MMbbl, representing an estimated 10% recovery factor. Both fields produce a light crude which receive a premium price to Brent.
The low recovery factors present an opportunity that Criterium intends to unlock by focusing its efforts on workovers of bypassed pay, infill drilling, and secondary recovery techniques. In addition the Tungkal PSC contains 20 bcf of 2C contingent gas resources that can be monetized with a proper plan of development as well as a P50 prospective resource of 27 MMboe near existing infrastructure. The PSC is under a gross split agreement that expires in 2042, giving Criterium ample running room for development and growth.
Source: Evaluation Report prepared by ERC Equipoise Ltd ("ERCE") for the hydrocarbon Reserves and certain Contingent Resources and Prospective Resources held by Mont D'Or Petroleum within the Tungkal PSC and West Salawati PSC, onshore Indonesia, as of December 31, 2022