Thanks Joe. For the first quarter of 2019 net income attributable to Valero stockholders was $141 million or $0.34 per share compared to $469 million or $1.09 per share in the first quarter of 2018. First quarter 2018 adjusted net income attributable to Valero stockholders was $431 million or $1 per share. For reconciliations of actual to adjusted amounts please refer to the financial tables that accompany this release. Operating income for the refining segment in the first quarter of 2019 was $479 million compared to $811 million for the first quarter of 2018. The decrease from first quarter of 2018 was mainly attributed to significantly weaker gasoline margins and narrower medium and heavy sour crude differentials. Refining throughput volume averaged 2.9 million barrels per day which was lower than the first quarter of 2018 primarily due to maintenance activities. Throughput capacity utilization was 91% in the first quarter of 2019. Refining cash operating expenses of $4.15 per barrel or $0.32 per barrel higher than the first quarter of 2018 mostly due to maintenance related expenses and lower throughput in the first quarter of 2019. The Ethanol segment generated $3 million of operating income in the first quarter of 2019 compared to $45 million in the first quarter of 2018. The decrease from first quarter of 2018 was primarily due to lower ethanol prices. Ethanol production volumes averaged $4.2 million gallons per day in the first quarter of 2019 an increase of 104,000 gallons per day versus the first quarter of 2018 primarily due to added production from the three ethanol plants acquired in November 2018. As noted in the earnings release we are reporting the renewable diesel segment beginning this quarter. The segments generated $49 million of operating income in the first quarter of 2019 compared to $195 million in the first quarter of 2018. Excluding the adjustments shown in the accompanying earnings release tables related to the 2017 blenders tax credit recorded in early 2018, first quarter 2018 adjusted operating income was $35 million. Renewable diesel sales volumes averaged 790,000 gallons per day in the first quarter of 2019, an increase of 419,000 gallons per day versus the first quarter of 2018. The adjusted operating income and sales volumes increased from the first quarter of 2018 primarily due to the expansion of the Diamond Green Diesel plant in the third quarter of 2018. For the first quarter of 2019, general and administrative expenses were $209 million and net interest expense was $112 million. Depreciation and amortization expense was $551 million and income tax expense was $51 million in the first quarter of 2019. The effective tax rate was 23%. With respect to our balance sheet at quarter end, total debt was $10.1 billion and cash and cash equivalents were $2.8 billion. Valero debt to capitalization ratio after giving effect to the redemption of the 815 million senior notes occurring today was 26%. At the end of March, we had $5.4 billion of available liquidity excluding cash. We generated $877 million of net cash from operating activities in the first quarter excluding the favorable impact from a working capital increase of approximately $130 million net cash generated was $747 million. With regard to investing activities, we made $726 million of capital investments in the first quarter of 2019 of which $453 million was for sustaining the business including costs for turnarounds, catalysts and regulatory compliance. Moving to financing activities, we returned $411 million to our stockholders in the first quarter; $375 million was paid as dividends with the balance used to purchase 414,000 shares of Valero common stock. The total payout ratio was 55% of adjusted net cash provided by operating activities. As of March 31, we had approximately $2.2 billion of share repurchase authorization remaining. We continue to expect annual capital investments for both 2019 and 2020 to be approximately $2.5 billion, with approximately 60% allocated to sustaining the business and approximately 40% to growth. Included in that amount are turnarounds, catalysts and joint venture investments. For modeling our second quarter operations, we expect refining throughput volumes to fall within the following ranges. U.S. Gulf Coast at 1.72 million to 1.77 million barrels per day. U.S. Mid-Continent at 425,000 to 445,000 barrels per day. U.S. West Coast at 220,000 to 240,000 barrels per day and North Atlantic at 450,000 to 470,000 barrels per day. We expect refining cash operating expenses in the second quarter to be approximately $4 per barrel. Our Ethanol segment is expected to produce a total of 4.7 million gallons per day in the second quarter. Operating expenses should average $0.38 per gallon which includes $0.05 per gallon for non-cash costs such as depreciation and amortization. With respect to the renewable diesel segment, we expect sales volume to be 750,000 gallons per day in 2019. Operating expenses in 2019 should be $0.45 per gallon which includes $0.16 per gallon for non-cash costs such as depreciation and amortization. For 2019, we continue to expect G&A expenses excluding corporate depreciation to be approximately $840 million. The annual effective tax rate is still estimated at 23%. For the second quarter net interest expense should be about $115 million and total depreciation and amortization expense should be approximately $560 million. Lastly, we expect RIN's expense for the year to be between $300 million and $400 million which is approximately $100 million lower than the previous guidance primarily due to lower RIN's prices. That concludes our opening remarks. Before we open the call to questions, we again respectfully request that callers adhere to our protocol of limiting each turn in the Q&A to two questions. If you have more than two questions please rejoin the queue as time permits. This helps us ensure other callers have time to ask their questions.