Calgary-based oil and gas producer Gran Tierra Energy Inc. (GTE) is selling its Colombian and Ecuadorian oil businesses to Établissements Maurel&Prom (M&P; not rated). As part of the transaction, M&P will assume GTE's $494 million senior secured notes due 2031 and $88 million senior unsecured notes due 2029. On Oct. 9, GTE said that it had received stockholder approval and consent from the bondholders of the company's 2031 notes to proceed with the transaction. The remaining conditions to close are regulatory approvals in Colombia and Ecuador and other customary closing conditions. On Oct. 27, 2026, S&P Global Ratings affirmed its'B'issue-level rating on the 2031 notes and'B-'issue level rating on the 2029 notes and revised