| Exhibit 21 | ||||||||
| Limited Liability Companies | State of Organization | |||||||
| Expand Operating LLC | Oklahoma | |||||||
| Expand Exploration LLC | Oklahoma | |||||||
| Expand Appalachia LLC | Oklahoma | |||||||
| Expand Gulf Coast LLC | Oklahoma | |||||||
| Expand Energy Marketing LLC | Texas | |||||||
| * In accordance with Regulation S-K Item 601(b)(21), the names of particular subsidiaries that, considered in the aggregate as a single subsidiary, would not constitute a significant subsidiary (as that term is defined in Rule 1-02(w) of Regulation S-X) as of the end of the year covered by this report have been omitted. | ||||||||