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Exxon limits Guyana crude output due to more gas injection issues

By Luc Cohen

Aug 21 (Reuters) – Exxon Mobil Corp is limiting output at its flagship offshore project in Guyana to 100,000 barrels-per-day (bpd) due to more issues with the reinjection of natural gas, the South American country’s environmental regulator said on Friday.

Exxon, which operates the Stabroek block in a consortium with Hess Corp and China’s CNOOC Ltd, had initially planned to ramp up output for this first phase of the Liza project to its full capacity of 120,000 barrels-per-day (bpd) in August, Exxon Senior Vice President Neil Chapman said in a July earnings call.

But mechanical issues with gas compressing equipment are preventing Exxon from reinjecting all of the natural gas produced alongside the light, sweet Liza crude, prompting the company to limit output so as to not flare an excessive amount of the gas, Guyana Environmental Protection Agency executive director Vincent Adams told Reuters.

“We know that they’re doing their best to try to fix it, but the bottom line is it’s not fixed,” Adams said.

Natural gas flaring is a significant source of climate-warming greenhouse gas emissions. Guyanese authorities say Exxon should eliminate all flaring except for a “pilot” flame, necessary for safety.

The first phase of the Liza field “demonstrated” its full capacity of 120,000 bpd in the second quarter, Chapman said in July. But in June, the company slashed output to around 30,000 bpd due to gas reinjection issues, before ramping back up to around 90,000 bpd.

“We continue to safely complete final commissioning of the gas handling system,” an Exxon spokesperson said on Friday. “Once the system is fully commissioned, we will be able to produce at full capacity.”

Exxon and its partners have discovered more than 8 billion barrels of recoverable oil and gas off Guyana’s coast, which is expected to transform the poor country’s economy. (Reporting by Luc Cohen in New York Additional reporting by Neil Marks in Georgetown Editing by Marguerita Choy)

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