Tullow's current outstanding bond issues are provided in the following table:
| Settlement | Maturity | Currency | Amount (M) | Coupon | Listing | Issue Rating | ISIN |
| 08/04/2014 | 15/04/2022 | USD | 650 | 6.250% | Luxembourg | B+ (Standard & Poor's) | US899415AC75 (144A), USG91235AB05 (regulation S) |
| B3 (Moody's) |
| 23/03/2018 | 01/03/2025 | USD | 800 | 7% | Luxembourg | B+ (Standard & Poor's) | US899415AE32 (144A) USG91237AA87 (regulation S) |
| B3 (Moody's) |
Corporate credit ratings
Tullow is currently rated by two credit rating agencies: Moody's Investor Services and Standard & Poor's:
| Agency | Rating | Outlook | Publishing date |
| Standard & Poor's | B+ | Positive | 02/10/2018 |
| Moody's | B1 | Stable | 22/01/2018 |