On or about 5 June 2020, the semisubmersible Seadrill "Sevan Louisiana" left its location in the southwestern corner of the Mississippi Canyon (MC) protraction area of the deepwater central Gulf of Mexico, where it completed drilling well MC 881 1S0B1 (API 608174142001) for operator Walter Oil & Gas. The original hole, MC 881 1S0B0 (API 608174142000), was spudded on 23 February 2020 with a surface location in MC 882 (G35989) and bottom hole location in MC 881 (G35988). Bypass operations began on 17 April 2020 at a depth of 5,331 ft (1,625 m). Walter has not reported results.  The Bureau of Ocean Energy Management (BOEM) on 24 February 2020 approved the drilling application submitted by Walter on 5 November 2019. The approved location corresponds to well "A" in the company's exploration plan N-10071, submitted on 13 June 2019 and approved by the BOEM on 9 October 2019. The plan described two locations, "A" and "B".  The well sits in water depth of 2,234 ft (681 m) some 73 mi (117 km) south of the onshore support base at Port Fourchon, Louisiana. The prospect is about 7 mi (11 km) east of the Eni-operated Morpeth-Klamath field, which produced over 24 MMbo and 24 Bcfg from Pliocene-aged reservoirs before ceasing production in August 2018. Based on the exploration plan, Walter estimates it will take 382 days to drill, complete and test the well, and install a subsea tree.  Walter acquired MC 881 and 882 with sole uncontested bids for a combined USD 2.1 million at Sale 247 in March 2017.  Background Information  Exxon drilled a well in MC 881 in 1990. Well MC 881 1S0B0 (API 608174038700) targeted the Pleistocene interval but came up dry. The well was drilled under lease G07967.
(Deep Water Gulf of Mexico B.) Mississippi Canyon 881 001S0B0 op. by OXY (75%), OPUBCO (16%), HI PRO (9%) in MC 881 block, TD = 3105.6 m, WD = 598.6 m deviated into MC 881, E. of Eni's Morpeth-Klamath field in WD=681m, ops terminated, no further details are available.