X0609 4 2026-05-18 0 0001842279 OPAL Fuels Inc. OPAL 0001839919 Dols Scott V. false ONE NORTH LEXINGTON AVE, 14TH FLOOR WHITE PLAINS NY 10601 1 0 0 0 0 Class A common stock 2026-05-18 4 P 0 12603 2.02 A 208275 D Class A common stock 2026-05-19 4 P 0 25105 2.05 A 233380 D The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging between $1.94 and $2.06. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging between $1.99 and $2.10. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. /s/ John Coghlin as Attorney-in-Fact 2026-05-20