Maryann Mannen
Chief Financial Officer at Marathon Petroleum
Thanks, Mike. Moving to third-quarter highlights. Slide five provides a summary of our financial results. This morning, we reported adjusted earnings per share of $8.14. This quarter's results were adjusted to exclude a $106 million gain on sale of MPCs 25% interest in the South Texas Gateway Terminal, as well as $63 million of response cost associated with our unplanned outage at Garyville. These adjustments reduced our reported adjusted earnings by $0.14 per share. Adjusted EBITDA was $5.7 billion for the quarter and cash flow from operations excluding favorable working capital changes was over $4.3 billion.
During the quarter, we returned $297 million to shareholders through dividend payments and repurchased over $2.8 billion of our shares. And from May 2021 through October 27th, we have repurchased 285 million shares or approximately 44% of the shares outstanding. Slide six shows the reconciliation between net income and adjusted EBITDA, as well as the sequential change in adjusted EBITDA from second-quarter 2023 to third quarter 2023. Adjusted EBITDA was higher sequentially by approximately $1.2 billion, driven by higher R&M margins. Corporate expenses were higher sequentially by $40 million, primarily due to a charge related to valuation of existing performance-based stock-compensation expense. The tax-rate for the third-quarter was 22%, resulting in a tax provision of approximately $1 billion.
Moving to our segment results. Slide seven provides an overview of our refining and marketing segment. Our refining assets ran at 94% utilization processing nearly 2.8 million barrels of crude per day at our 13 refineries sequentially per barrel margins were higher across all regions, driven by higher crack spreads. Capture was 93%. Refining operating costs were $5.14 per barrel in the third-quarter flat sequentially. We did have unplanned downtime during the quarter, impacting our two largest refineries, which resulted in loss crude throughput of 4.7 million barrels due to the Galveston Bay Reformer outage and 2.1 million barrels at Garyville.
Additionally, this downtime resulted in a headwind to our overall capture. We began construction activities on the reformer repair about three months after the event once regulators gave us clearance and we were able to finalize the required repairs. Since then, repairs have progressed as planned and during this outage, we pulled forward turnaround work into the third and fourth quarters, which had been scheduled in the first-quarter of 2024. Slide eight provides an overview of our Refining and Marketing margin capture this quarter, which was 93%. Our commercial team executed effectively despite weak secondary product pricing and refinery downtime, which weighed on capture this quarter. Capture results will fluctuate based on-market dynamics. We believe that the capabilities we have built over the last few years, will provide a sustainable advantage.
This commitment to commercial performance is foundational, and we expect to continue to see the results. Slide nine shows the change in our Midstream segment adjusted EBITDA versus the second quarter of 2023. Our Midstream segment delivered strong third-quarter results. Segment adjusted EBITDA was flat sequentially and 3% higher Year-over-Year, primarily due to higher throughputs in rates. Year-to-date our Midstream segment EBITDA is up 6% compared to the prior year period. As Mike mentioned earlier, the growth of MPLXs earnings supported its decision to increase its quarterly distribution by another 10% to $0.85 per unit.
MPC expects to receive $2.2 billion in cash from MPLX on an annual basis. Our Midstream business continues to grow and generate strong cash flows. We are advancing high-return growth projects anchored in the Marcellus and Permian Basin. Slide 10 presents the elements of change in our consolidated cash position for the quarter, operating cash flow excluding changes in working capital with over $4.3 billion in the quarter. Working capital was $609 million tailwind for the quarter, driven primarily by increases in crude oil prices. Year-to-date, working capital has been $1.4 billion towards the cash. Capital expenditures and investments totaled $486 million this quarter, consistent with our 2023 outlook. MPC returned nearly $3.1 billion via share repurchases and dividends during the quarter.
This represents an approximately 72% payout of the $4.3 billion of operating cash flow excluding changes in working capital, highlighting our commitment to superior shareholder returns. As of October 27th, we have approximately $8.3 billion remaining under our current share repurchase authorization, which includes the additional $5 billion approval announced last week. At the end of the third-quarter MPC had approximately $13.1 billion in consolidated cash and short-term investments. This includes approximately $1 billion of MPLX cash.
Turning to guidance on slide 11 we provide our fourth-quarter outlook. We expect crude throughput volumes of over 2.6 million-barrels per day, representing utilization of 90%. Utilization is forecasted to be lower than third-quarter levels due to turnaround activity having a higher impact on crude units in the fourth-quarter. In the Gulf Coast with respect to the Galveston Bay reformer repairs have progressed as planned. We anticipate starting the unit back up in mid-November. Production is expected to ramp over the next several weeks and guidance anticipates returning to full operating rates by mid-December following advanced turnaround activity.
And as I mentioned earlier, during this outage, we plan to continue progressing and complete turnaround work that was previously scheduled for 2024. As a result, planned turnaround expense is now projected to be approximately $300 million in the fourth-quarter. Operating cost per barrel in the fourth quarter are expected to be $5.60 higher sequentially due to higher energy cost particularly on the West Coast as well as higher project-related expenses associated with planned turnaround activity. Distribution costs are expected to be approximately $1.4 billion for the fourth-quarter. Corporate costs are expected to be $175 million, representing a sustained reductions that we have made in this area.
With that, let me pass it back to Mike.