ExxonMobil is preparing to undertake more drilling activities at its Ranger-1 discovery in the Stabroek Block in 2025, according to Alistair Routledge, President of ExxonMobil Guyana, who shared insights during a recent episode of Energy Perspectives. The Ranger find, made in 2018, is Exxon’s sixth discovery in the block and its deepest that year, located about 60 miles northwest of the Liza field.
Routledge noted that Ranger is situated in a carbonate reservoir, unlike the sandstone formations of previous developments. “Carbonates are more challenging to develop than sandstones. They require a lot more effort to analyze the geoscience data we’ve gathered from the wells already drilled,” he explained.
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Initial estimates in 2018 suggested Ranger held 346 million barrels of oil, a figure that grew to between 500 and 600 million barrels by 2022. Routledge confirmed that the company remains committed to fully understanding Ranger’s potential, emphasizing that this discovery could significantly boost Guyana’s production.
“With the prospecting license active through October 2027, we’re focused on both exploration and appraisal to ensure we maximize opportunities,” Routledge said.
He added that Ranger represents a critical step in diversifying resource development within the block.
ExxonMobil has made over 30 discoveries in Guyana’s Stabroek Block, but none have managed to boot the Ranger-1 well from its rank as the deepest to ever be drilled.
