
Col. (Ret.) Marines Prasojo Sumarto
Guides the strategic direction of the Company, ensuring sustainable growth and value creation for shareholders while nurturing a culture of innovation and responsible business practice.

PT Sasamu Putra Indonesia is Indonesia's pioneer operator for idle well reactivation under the Operations & Technology Cooperation (KSOT) scheme. We align with the Government, SKK Migas, Pertamina, and KKKS partners to support the 1 million barrel per day production target.
Potential idle wells identified at Samboja Field
Projected annual ROI, base-case scenario
5-year net profit at base-case assumptions
Trusted across Indonesia's energy ecosystem
In line with the policy push toward 1 million barrels per day, we stand as the first operator in Indonesia executing the Operations & Technology Cooperation (KSOT) model for idle well reactivation. With disciplined technical, reservoir, well-integrity, surface-facility, and economic evaluation, we turn non-producing assets into real value — for the nation, for partners, and for host communities.
Operating under Permen ESDM 14/2025, Permen ESDM 01/2008, and PTK SKK Migas 023/2025.
Technical studies, production estimates, OPEX, and risk analysis are completed before operations begin.
Creating local employment, empowering communities, and supporting national development.
From site preparation to lifting, we deliver an end-to-end solution set, tailored to the parameters of each well.

A historic onshore field dating back to 1897 within the Pertamina Hulu Sanga Sanga (PHSS) working area. Dominated by Miocene sandstone reservoirs with NE–SW trending anticlines. A deep-zone prospect below 800 m indicates additional shallow-marine reservoir potential.
A commercially viable project with stable cash flows across scenarios and a positive recommendation from the Board of Directors.
Annual ROI
Base case · 5-year horizon
5-year net profit
Base-case scenario
Payback period
Investor capital return
Break-even point
Or 585 days of production
Our HSE and governance approach is designed to meet the targets set in our sustainability framework — from Zero Incident to 3R waste management.
Zero incident, zero injury, zero occupational illness across all operations and offices.
Reduce, reuse, recycle for non-B3 waste, composting of organics, and recycling of inorganic streams.
Prevention systems, preventive-corrective maintenance, and a trained emergency response team.
Local employment, workforce training, and partnerships with cooperatives and MSMEs.
Commissioners and directors with proven track records in exploration, development, finance, and energy management.

Guides the strategic direction of the Company, ensuring sustainable growth and value creation for shareholders while nurturing a culture of innovation and responsible business practice.

Leads reactivation operations, technical studies, and relations with SKK Migas and KKKS partners across all operational areas.

Oversees legal, finance, human resources, and relations with investors and strategic stakeholders.

We welcome conversations with investors, KKKS operators, technology partners, and government stakeholders. Every discussion begins under a mutual Non-Disclosure Agreement.