The collective resource is 4 Bboe, with associated greenfield capex of $28 billion from the final investment decision (FID) to first production.
There should be higher overall investments in brownfield, maintenance, and infill drilling activities at existing projects, Rystad added.
Some of the 50 projects are later phases of earlier developments, with the largest infrastructure already in place.
Indonesia, with 19 fields, is the dominant country in the region’s FID forecast, but Malaysia accounts for the largest percentage of overall resources to be developed (37%) and required capex (42%).
Here, Rystad expects Mubadala Petroleum’sPegaga field development to go forward soon, potentially the largest individual field FID in the region this year.
Sapura Energy will likely progress some of the smaller fields in Sarawak offshore block SK408, while larger projects such as the Jerun field in SK40 will probably be approved toward the end of the forecast period.
“After the 2018 elections, whichever partner Petronas brings in will need some time to properly study the CO2 [carbon dioxide] content issues before finally approving the biggest prize in our time horizon — Kasawari,” Rystad research analyst Readul Islam predicted.
Gas is set to comprise 85% of the resources reaching FID over the full period - the largest volume in 2018 coming fromVietnam’s block B project.
Most of the gas to be developed in Indonesia and Malaysia will head to existing LNG plants.
Islam said: “Strong economic growth has led to burgeoning domestic gas demand throughout the region. The resulting uptick in local gas prices as well as the pollution profile of the fuel compared to alternatives means both operators and governments are incentivized to push natural gas projects.
“Countries such asMyanmar, with offshore gas discoveries and a still emerging local gas market, look set for an export boom.”