OPAL Fuels Inc. (Nasdaq: OPAL) is a renewable natural gas company that went public through a merger with ArcLight Clean Transition Corp. II, a blank-check vehicle sponsored by ArcLight Capital Partners that completed its IPO in 2021. The company captures and converts biogas from landfills and livestock operations into renewable natural gas and renewable electricity, placing it firmly in the clean energy sector. OPAL filed an amended quarterly report (Form 10-Q/A) with the SEC on November 26, 2021, during the de-SPAC process; the business combination with ArcLight formally closed in July 2022, establishing OPAL as a Nasdaq-listed public company. Sign up at SpacDesk for complete filing history, transaction timelines, and analytics across the SPAC market.