Robert Peterson
Senior Vice President and Chief Financial Officer at Occidental Petroleum
Thank you, Vicki, and good afternoon. Our cash flow priorities continue to direct free cash flow allocation in the first quarter, as we repaid an additional debt in April and paid the first distribution of our increased common dividend. On our last call, we detailed our near-term debt reduction targets, including repaying $5 billion of debt and reducing net debt to $20 billion. Our progress towards meeting these targets advanced significantly in the first quarter. We repaid approximately $3.3 billion of debt and ended the quarter with net debt of $23.3 billion, reflecting the face value of our debt of $25.2 million and the unrestricted cash balance of $1.9 billion.
Repaying $3.3 billion of debt in the first quarter was accomplished through a combination of a $2.9 billion tender offer exercising the call provision on a note and open market repurchases. Following quarter-end, we retired approximately $300 million in additional debt within[phonetic] open market repurchases, lowering gross debt to approximately $24.9 billion, which is a balance today. It is reasonable to expect that we could meet our near-term debt target and then initiate our share repurchase program during the second quarter.
Once we complete our near-term debt reduction targets and repurchased $3 billion of shares, we will continue to allocate free cash for repaying debt if we lower gross debt to the high-teens in billions. We believe reducing debt to this level will speed our return to investment grade, and better position us to sustain a greater dividend at lower prices. When we reach this stage, we intend to transition from proactively reducing debt to primarily addressing maturities as they come due. Our debt-reduction efforts continued to receive positive recognition. Since our last earnings call, Moody's upgraded our credit range to BA1 with a positive outlook.
All three of the major credit rating agencies, now rate our debt as one notch below investment grade, which we view as recognition of the pronounced and ongoing improvement in our credit profile. Our consistently strong operational results in combination with the current commodity price environment are driving improved profitability on top of our already robust free cash flow generation. In the first quarter, we announced an adjusted profit of $2.12 per diluted share, our highest adjusted core EPS in over a decade and a reported profit of $4.65 per diluted share.
The difference between our adjusted and reported profit for the quarter was mainly driven by the legal entity reorganization described in our most recent 10-K and 10-Q filings. Following the completion of our large-scale post-acquisition divestiture program and a portion of the existing tax basis was reallocated to operating assets, thus reducing our deferred tax liabilities by approximately $2.6 billion, which was recognized in our reported earnings for the quarter. We resumed paying US federal cash taxes in the quarter ahead of our earlier expectation.
This was due in part to the strong earnings generated in the first quarter combined with our expectation for commodity prices in earnings over the remainder of the year. Given current commodity price expectations, we now expect to exhaust our US net operating losses and most of our general business credit carry-forwards this year. However, the NOLs and credits that we currently have remaining are expected to limit the amount of cash taxes paid this year. For example, we would expect to pay approximately $600 million in US federal cash taxes if WTI averaged $90 per barrel in 2022.
The increase in commodity prices certainly benefited us during the quarter, as demonstrated by our strong earnings and free cash flow generation. Commodity price environment improvement compared to the previous quarter also reloaded in higher accounts receivable balances which contributed to a negative working capital change. Negative working capital change is also driven by typical first quarter payments such as semi-annual interest payments, annual property tax payments, and payments under compensation plans. As was the case in 2021, we see the potential for the working capital change to partially reverse over the remainder of the year, if commodity prices are stable and due to payments accrued during the year being made in subsequent first quarter.
We are pleased to be able to update our full-year guidance for Midstream and OxyChem, reflecting strong first-quarter performance and improved market conditions. Our revised full-year guidance for OxyChem now includes the expectation of our fourth consecutive record for quarterly earnings in the second quarter. We recognize the possibility of software product prices later in the year, but still expect the third and fourth quarters to be exceptionally strong by historical standards.
As Vicki mentioned, our Rockies business continues to perform well. Our expectation of continued strong well performance over the remainder of the year provides us with confidence to raise full-year guidance for the Rockies by 5,000 BOE per day. On previous calls, we've discussed how we've been working closely with Colorado communities and regulators in implementing the state's new permitting process. However[Phonetic], drilling permits we have in hand are sufficient to run a single rig for the remainder of 2022.
It is no longer feasible for us to run a multi-rig program for Colorado this year, given the current pace of state approvals. As a result, we plan to reallocate activity from the Rockies to the Permian in the second half of the year. This activity change will not impact our 2022 production and is included in domestic onshore activity slide in the appendix of our earnings presentation. We plan to submit the development plans in the coming months that will cover over 1,100 rig days. We are hopeful that as Colorado's new permitting process matures, it will continue to become more efficient.
Regulatory certainty early on in the process would provide us with the option to add activity back in the Rockies in future years, given oil and gas development plans we expect to submit for this year. While our company-wide full year guidance is unchanged, as Vicki mentioned, we have included a 6,000 BOE per day downward adjustment to our full year international guidance, reflecting the impact of higher oil prices and our production sharing contracts. Our original budget included a forecast of $73 for Brent, while our revised guidance reflects a Brent average price of $95 for 2022.
Inclusive of these activity changes, our 2022 capital guidance remains at $3.9 billion to $4.3 billion. We mentioned on our last call that our 2022 capital guidance incorporates approximately $250 million of inflation compared to 2021. The cost of materials and services necessary for operations, especially onshore in the United States has continued to increase. We are working to offset inflationary pressures through additional efficiency. But if price increases continue, we may spin near the top end of our capital guidance this year.
Certain pricing pressures such as labor and our WTI index CO2 purchase contracts in the EOR business have become pressing, leading to a slight upward adjustment in our full year guidance for domestic opex. We are pleased with our strong start to 2022. With one full quarter behind us, we have completed scheduled turnarounds, continued to pay down debt, establish a shareholder return framework, provided a comprehensive update on our low carbon strategy and set new quarterly records for earnings and cash flow. We will continue to focus on delivering value for shareholders this year and beyond. I will now turn the call back over to Vicki.