FACTBOX-U.S. Gulf Coast energy companies restart after storms

 (Updates with Shell WD-143 status)
    Sept 21 (Reuters) - Energy companies in the U.S. Gulf of Mexico continued to restart following the combined hit from Hurricanes Nicholas and Ida.
    About 18% of U.S. Gulf of Mexico crude oil production and 27% of its natural gas output remained offline on Monday, more than three weeks after Hurricane Ida rattled platforms in
the region, regulator Bureau of Safety and Environmental Enforcement (BSEE) said.
    Offshore wells in the Gulf of Mexico account for 17% of U.S. crude oil production and 5% of dry natural gas production. More than 45% of total U.S. refining capacity lies along
the Gulf Coast.
    The following is a timeline of current measures being taken: 
 OPERATOR                              OPERATIONS/LOCATION                  CAPACITY       DATE             DETAILS                                              USN 
 Royal Dutch Shell                     Gulf of Mexico pipeline (West                       Sept. 20         - WD-143 platform "A" offshore facility in the Gulf              
                                       Delta-143 / WD-143)                                                  of Mexico to be offline for repairs until the end of 2021 - Expects to resume production from Olympus platform  flowing across WD-143 "C" platform in Q4 2021 - 60% of Shell-operated production back online in Gulf of Mexico - Turritella is online - Mars and Ursa oilfields, which supply about 200,000 bpd combined, would be affected into the first quarter of next year. Chevron Corp                          Gulf of Mexico platforms                            Sept. 17         Restored full production at Big Foot, Blind Faith, Jack St. Malo, and Tahiti platforms; partial production at Petronius facility                     
 Equinor                               Titan oil platform                                  Sept. 17         Still working to bring Titan platform back online                
 Royal Dutch Shell                     Perdido Gulf of Mexico platform                     Sept. 17         Perdido restarted Deer Park Manufacturing Complex,                    Sept. 14         -Deer Park refinery operating normally                           
                                       Geismar Chemical facility in Louisiana,                                                           -Geismar chemical plant restarted, at reduced rates PBF Energy                            Chalmette refinery, Louisiana        190,000        Sept. 15         Most units restarted Colonial Pipeline                     Main gasoline, distillate lines                     Sept. 15         Returned to normal operations Exxon Mobil Corp                      Hoover Offshore Oil Pipeline System                 Sept. 15         To resume service on Wednesday                                   
                                       (HOOPS) Marathon Petroleum Corp               Galveston Bay, Texas                 593,000        Sept. 14         Normal operations Lyondell Basell Industries            Houston refinery                     263,776        Sept. 14         Operating normally Valero Energy Corp                    St. Charles, Meraux refineries,      215,000        Sept. 14         Restarts underway                                                
                                       Louisiana and Diamond Green Diesel   (St Charles) plant                                125,000 (Meraux) Freeport LNG                          Export plant in Texas                               Sept. 14         All three liquefaction trains shut Phillips 66                           Sweeny refinery, Midstream assets                   Sept. 14         - Sweeny refinery operational                                    
                                       along Texas coast                                                    - Midstream assets hit by power outages Alliance refinery, Louisiana         255,600        Sept. 13         - pumping out floodwater, assessing damage Occidental Petroleum Corp             Gulf of Mexico                                      Sept. 13         - implementing weather-related procedures Enbridge                                                                                  Sept. 10         Offshore facilities ready to operate, Venice gas plant offline W&T Offshore                          Gulf of Mexico                                      Sept. 9          - No significant damage to platforms or related infrastructure - About 50% output remains shut-in Murphy Oil                            Gulf of Mexico                                      Sept. 8          - Re-manned shortly after Ida - Port Fourchon shorebase reopening BP                                    Gulf of Mexico facilities                           Sept. 7          - Restarting operations (Reporting by Bengaluru Commodities Desk; Editing by Sherry Jacob-Phillips)