(Bloomberg) -- Occidental Petroleum Corp. will restart some Gulf of Mexico oil production after being asked to curtail output due to a third-party pipeline leak last year. 

Occidental will begin producing again from assets in the eastern part of the Gulf “in the coming days” after a leak at the Main Pass Oil Gathering system was discovered in November, it said in a filing Wednesday. 

“Following successful pipeline testing, Occidental is awaiting instructions from the system operator to restart production, which is pending final regulatory approvals,” it said. 

Occidental expects first-quarter production from the Gulf of Mexico to be 90,000 barrels of oil equivalent a day, about 20% below the mid-point of its guidance. 

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