Canada-based oil and gas producer Gran Tierra Energy Inc. (GTE) has focused on increasing its production before royalties, reaching 28,957 barrels of oil equivalent per day (boepd) as of Sept. 30, 2021, up 82.9% compared with the same period in 2020 (18,944 boepd). However, this is still 12% below that for the same period of 2019 (32,918 boepd). Higher production volumes, together with rising prices (using Brent as a reference) of about $69.08 per barrel (bbl) by June 30, 2021, allowed GTE to increase EBITDA and reduce debt to EBITDA to 3.7x on an annualized basis from 9.8x in 2020. On Oct. 21, 2021, S&P Global Ratings raised its issuer-credit and issue-level ratings on GTE to 'B' from 'B-'. The