Exhibit 21.1
| Name | Jurisdiction | |
| Energy XXI (US Holdings) Limited | Bermuda | |
| Energy XXI International Limited | Bermuda | |
| Energy XXI Malaysia Limited | Bermuda | |
| Energy XXI Insurance Limited | Bermuda | |
| Energy XXI, Inc.* | Delaware | |
| Energy XXI USA, Inc.* | Delaware | |
| Energy XXI Natural Gas Holdings, Inc.* | Delaware | |
| Natural Gas Acquisition Company I, LLC* | Delaware | |
| Energy XXI Gulf Coast, Inc.* | Delaware | |
| MS Onshore, LLC* | Delaware | |
| Energy XXI Services, LLC* | Delaware | |
| Energy XXI GIGS Services, LLC | Delaware | |
| Energy XXI Holdings, Inc.* | Delaware | |
| Energy XXI GOM, LLC* | Delaware | |
| Energy XXI Texas Onshore, LLC (f/k/a Energy XXI Texas GP, LLC)* | Delaware | |
| Energy XXI Offshore Services, Inc.* | Delaware | |
| Energy XXI Onshore, LLC (f/k/a Energy XXI Texas, LP)* | Delaware | |
| Energy XXI Pipeline, LLC* | Delaware | |
| Energy XXI Pipeline II, LLC* | Delaware | |
| Energy XXI Leasehold, LLC* | Delaware | |
| Energy XXI M21K, LLC | Delaware | |
| M21K, LLC* | Delaware | |
| Soileau Catering, LLC* | Delaware | |
| EPL Oil & Gas, Inc. (f/k/a Clyde Merger Sub, Inc.)* | Delaware | |
| EPL of Louisiana, LLC* | Louisiana | |
| Energy Partners, Ltd., LLC* | Delaware | |
| EPL Pioneer Houston, Inc.* | Texas | |
| Delaware EPL of Texas, LLC* | Delaware | |
| EPL Pipeline, LLC* | Delaware | |
| Nighthawk, LLC* | Louisiana | |
| Anglo-Suisse Offshore Pipeline Partners, LLC* | Delaware |

| * | On April 14, 2016, filed voluntary petition for reorganization in the United States Bankruptcy Court seeking relief under the provisions of chapter 11 of Title 11 of the United States Bankruptcy Code. |