Thank you, Mark, and hello, everyone. Starting with an overview on Slide 5, we summarized our financial results for the first quarter. Adjusted earnings were $2 billion or $4.21 per share. The $12 million decrease in the fair value of our investment in NOVONIX reduced earnings per share by $0.02. We generated operating cash flow of $1.2 billion, including a working capital use of $1.3 billion and cash distributions from equity affiliates of $369 million. Capital spending for the quarter was $378 million, including $228 million for growth projects. We returned $1.3 billion to shareholders through $486 million of dividends and $800 million of share repurchases. We ended the quarter with 459 million shares outstanding. Moving to Slide 6. This slide highlights the change in adjusted results by segment from the fourth quarter to the first quarter. During the period, adjusted earnings increased $66 million, mostly due to higher results in Chemicals and lower corporate costs, partially offset by a decrease in Marketing and Specialties. Slide 7 shows our Midstream results. First quarter adjusted pre-tax income was $678 million compared with $674 million in the previous quarter. Transportation contributed adjusted pre-tax income of $270 million, up $33 million from the prior quarter. The increase was primarily driven by seasonally lower operating costs. NGL and Other adjusted pre-tax income was $420 million compared to $448 million in the fourth quarter. The decrease was mainly due to the impact of declining commodity prices in the gathering and processing business. The fractionators at the Sweeny Hub continued to run above nameplate capacity, averaging 554,000 barrels per day. The Freeport LPG Export facility loaded a record 282,000 barrels per day in the first quarter. Turning to Chemicals on slide eight. Chemicals had first quarter adjusted pre-tax income of $198 million compared with $52 million in the previous quarter. The increase was mainly due to improved margins from lower feedstock costs, higher sales volumes and decreased utility costs. The industry polyethylene margin increased by $0.10 to $0.17 per pound during the quarter. Global O&P utilization was 94% for the quarter. Turning to Refining on slide nine. Refining first quarter adjusted pre-tax income was $1.6 billion, down $18 million from the fourth quarter. The impact of lower volumes from turnaround activities was mostly offset by higher realized margins and lower utility costs. Our realized margins increased by 5% to $20.72 per barrel, while the composite 3:2:1 market crack decreased by 5%. In the first quarter, turnaround costs were $234 million, crude utilization was 90% and clean product yield was 83%. Slide 10 covers market capture. The market crack for the first quarter was $22.39 per barrel compared to $23.58 per barrel in the fourth quarter. Realized margin was $20.72 per barrel and resulted in an overall market capture of 93%, up from 84% in the previous quarter. Market capture is impacted by the configuration of our refineries. We have a higher distillate yield and a lower gasoline yield than the 3:2:1 market indicator. During the first quarter, the distillate crack decreased $19 per barrel and the gasoline crack increased $7 per barrel. Losses from secondary products of $2.56 per barrel were $1.03 per barrel lower than the previous quarter due to falling crude prices. Our feedstock advantage of $2.34 per barrel was $2.37 per barrel improved compared to the fourth quarter, primarily due to running more advantaged crudes. The Other category improved realized margins by $2.19 per barrel. This category includes freight costs, clean product realizations and inventory impacts. First quarter was $1.73 per barrel higher than the previous quarter, primarily due to improved clean product realizations. Moving to slide 11. Marketing and Specialties had a solid quarter, reflecting stronger-than-typical first quarter margins. Adjusted first quarter pre-tax income was $426 million compared with $539 million in the prior quarter, mainly due to lower international marketing margins. On slide 12, the Corporate and Other segment had adjusted pre-tax costs of $248 million; $32 million lower than the prior quarter. The improvement was mainly due to higher interest income and recognition of a transfer tax on a foreign entity reorganization in the fourth quarter of 2022. Slide 13 shows the change in cash during the first quarter. We started the quarter with a $6.1 billion cash balance. Cash from operations was $2.5 billion, excluding working capital. There was a working capital use of $1.3 billion, mainly reflecting an increase in inventory, partially offset by a decrease in our net accounts receivable position. During the quarter, we issued $1.25 billion of senior unsecured notes in support of the pending buy-in of DCP Midstream's publicly held common units. We funded $378 million of capital spending and returned $1.3 billion to shareholders through dividends and share repurchases. Our ending cash balance was $7 billion. This concludes my review of the financial and operating results. Next, I'll cover a few outlook items for the second quarter. In Chemicals, we expect the second quarter global O&P utilization rate to be in the mid-90s. In Refining, we expect the second quarter worldwide crude utilization rate to be in the mid-90s and turnaround expenses to be between $100 million and $120 million. We anticipate second quarter Corporate and Other costs coming between $260 million and $290 million, reflecting higher interest costs. In March, we issued senior unsecured notes of $1.25 billion and entered into a delayed draw term loan of up to $1.5 billion in support of the DCP Midstream buy-in transaction, which is expected to close during the second quarter. Now we will open the line for questions.