First River Energy, LLC, a midstream energy company based in San Antonio, TX, has filed a petition for relief under Chapter 11. in the Bankruptcy Court for the District of Delaware (Case No. 18-10080). First River Energy expanded substantially in 2015 when it received an equity investment from RWE Supply & Trading and acquired the San Antonio-based Texas Gathering Company. The Petition estimates First River Energy’s assets and liabilities to both be between $10–$50 million. A claims and noticing agent has not yet been proposed. The case has been assigned to the Honorable Mary F. Walrath.