This report does not constitute a rating action. MEXICO CITY (S&P Global Ratings) Sept. 12, 2024--S&P Global Ratings today said it views Gran Tierra Energy Inc.?s (GTE) proposed add-on of up to $150 million to its $587.6 million 9.5% senior secured notes amortizing from 2026 through 2029 as neutral for the company?s leverage. In February 2024, GTE reopened its notes for the first time to add on $100 million. The notes have a current outstanding balance of $587.6 million. Through this second proposed add-on, GTE could potentially increase its notes amount outstanding to up to $737.6 million. The Colombian oil and gas producer intends to use the net proceeds from this new proposed add-on to refinance the bridge loan it