Kevin Mitchell
CFO at Phillips 66
Thank you, Mark. Starting on slide 5, with an update on our business transformation progress. Our $1 billion business transformation target includes $800 million of cost savings and $200 million of sustaining capital reductions. We have identified over 2700 initiatives to permanently reduce costs, with employees across the organization actively engaged in the transformation process.
We have completed 1200 initiatives that are generating value today. The chart on the left shows our progress toward the $800 million cost reduction target with $550 million of run rate cost savings at the end of the second quarter. The stacked bar shows our actual cumulative cost reductions for the year by category. Over the first half of 2023, we realized $260 million in cost savings. The majority of these cost reductions relate to refining, which has benefited by about $0.40 per barrel.
Business transformation initiatives range from optimizing services across our portfolio of assets to establishing new tools to improve use of steam and energy. Organizationally, we've strengthened our centralized model for core functions to drive consistency and efficiencies. We continue implementing cost savings initiatives and are on track to achieve our run rate target by year-end 2023. We expect to realize the full $800 million of cost savings in 2024, which will include refining cost reductions of $0.75 per barrel.
Now I'll move to slide 6 to cover the second quarter financial results. Adjusted earnings were $1.8 billion or $3.87 per share. The $15 million decrease in the fair value of our investment in NOVONIX reduced earnings per share by $0.03. We generated operating cash flow of $1 billion, including a working capital use of $1 billion and cash distributions from equity affiliates of $239 million. Capital spending for the quarter was $551 million including $339 million for growth projects. We returned $1.8 billion to shareholders through $1.3 billion of share repurchases and $474 million of dividends. We ended the quarter with $445 million shares outstanding.
I'll cover the segment results on slide 7. Additional details can be referenced in the appendix to this presentation. This slide highlights the change in adjusted results by segment from the first quarter to the second quarter. During the period, adjusted earnings decreased $199 million, mostly due to lower results in refining and midstream, partially offset by an improvement in marketing and specialties. In midstream, second quarter adjusted pretax income was $626 million, down $52 million from the prior quarter. The decrease was driven by the impact of declining commodity prices in our NGL business. This was partially offset by higher volumes in transportation.
Chemicals adjusted pretax income decreased $6 million to $192 million in the second quarter. The industry polyethylene chain margin increased by $0.03 to $0.20 per pound. However, this was offset by higher maintenance and turnaround costs in the quarter. Global O&P utilization was 98%. Refining second quarter adjusted pretax income was $1.1 billion, down $460 million from the first quarter. The decrease was due to a decline in margins, partially offset by higher volumes and lower operating expenses.
Realized margins decreased primarily due to the decline in distillate crack spreads and narrowing heavy crude differentials, partially offset by improved gasoline cracks. In addition, realized margins reflect the impact of losses from secondary products due to declining NGL and Coke prices.
Marketing and Specialties adjusted second quarter pretax income was $644 million, an increase of $218 million from the previous quarter, mainly due to seasonally higher global marketing margins on continued strong demand. The corporate and other segments adjusted pretax costs were $12 million lower than the prior quarter. The adjusted effective tax rate was 22%, consistent with the previous quarter. The impact of noncontrolling interests was improved compared to the prior quarter and also reflects our acquisition of DCP units on June 15.
Slide 13 shows the change in cash during the second quarter. We started the quarter with a $7 billion cash balance. Cash from operations was $2 billion, excluding working capital. There was a working capital use of $1 billion, mainly reflecting an increase in inventory, which included the impact of unplanned downtime at the Bayway refinery and seasonal storage opportunities. Year-to-date working capital is a use of around $2 billion, primarily related to inventory that we expect to mostly reverse by year end.
We funded $551 million of capital spending. In June, we drew $1.25 billion on a single draw term loan to partially fund the acquisition of the DCP units for $3.8 billion. This transaction and the redemption of DCP's Series B preferred units of $161 million are represented as repurchase of noncontrolling interests. Additionally, we returned $1.8 billion to shareholders through share repurchases and dividends. Our ending cash balance was $3 billion.
This concludes my review of the financial and operating results. Next, I'll cover a few Outlook items. In chemicals, we expect the third quarter global O&P utilization rate to be in the mid 90s. In refining, we expect the third quarter worldwide crude utilization rate to be in the mid 90s, and turnaround expenses to be between $110 million and $130 million. We anticipate third quarter corporate and other costs to come in between $280 million and $300 million, reflecting higher net interest expense from funding the purchase of DCP units during the second quarter.
In 2023, we expect our full year capital spend to be above the $2 billion budget, reflecting approximately $200 million of additional spending on Rodeo Renewed. In addition, we just closed on a $260 million acquisition of West Coast Marketing Assets. This acquisition supports the high return Rodeo Renewed project by optimizing the full value of our renewable fuel sales to end customers.
We continue to review our portfolio to determine if assets meet our strategic long-term objectives or if they provide more value to third parties. Earlier this year, we divested the Belle Chasse Terminal, and very recently we sold our interest in the South Texas Gateway Terminal. Total proceeds from the two transactions are approximately $350 million
Now we will open the line for questions, after which Mark will make closing comments.