Thank you, Gary. Good morning, everyone. Gran Tierra had a great start to 2024. During the first quarter, we have completed a substantial portion of our development plan and are now focused on our 2024 exploration campaign, along with the development of [ Suroriente ] Block.
During the quarter, Gran Tierra delivered $74 million of funds flow, up 24% from the first quarter of 2023, which resulted in $2.34 of funds flow per share. After incurring approximately $55 million in capital expenditures, the company generated free cash flow of approximately $19 million. Adjusted EBITDA was $95 million for the quarter, up from $93 million in the prior quarter. As at March 31, 2024, the company had a cash balance of $127 million and net debt of $510 million.
The 12-month trailing net debt to adjusted EBITDA was 1.3x and is expected to be less than 1x by year-end from a combination of increased adjusted EBITDA and lower net debt. During the quarter, the company issued an additional $100 million of 9.5% senior notes and received cash proceeds of $88 million. With a portion of the funds, we fully repaid the outstanding balance on the company's credit facility of $36 million, and the facility was terminated.
Gran Tierra generated oil sales of $158 million, up 9% from the first quarter of 2023 due to higher sales volumes and lower Castilla, Vasconia and Oriente differentials. Looking at pricing during the quarter, Brent averaged $81.76 per barrel, up 1% from the prior quarter. The company's quality and transportation discounts per barrel during the quarter were $15.36 which significantly narrowed from $18.45 from the first quarter of 2023. The company's offering that back was $35.37 per barrel, up 1% from the first quarter of 2023.
Gran Tierra has repurchased approximately 1 million shares during the quarter. Since January 1, 2023, the company has repurchased approximately 3.3 million shares or 10% of the shares issued outstanding as at January 1, 2023, from free cash flow. We are very pleased how we have started 2024, and we are having excellent results in our core assets under waterflood. The balance sheet is in excellent shape, and we're very excited about the Arawana exploration well, which Sebastian will highlight. I'll now turn the call over to Sebastian to discuss our operational highlights from our first quarter results.