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Inventories
 3 Months Ended
Mar. 31, 2024
Inventory Disclosure [Abstract]  
Inventories Inventories
Inventories at March 31, 2024, and December 31, 2023, consisted of the following (in thousands):
Titled InventorySupply and Offtake Agreement (1)Total
March 31, 2024
Crude oil and feedstocks$201,617 $211,821 $413,438 
Refined products and blendstock346,635 154,856 501,491 
Warehouse stock and other (2)218,140 — 218,140 
Total$766,392 $366,677 $1,133,069 
December 31, 2023
Crude oil and feedstocks$175,307 $168,549 $343,856 
Refined products and blendstock358,236 133,684 491,920 
Warehouse stock and other (2)324,619 — 324,619 
Total$858,162 $302,233 $1,160,395 
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(1)Please read Note 9—Inventory Financing Agreements for further information.
(2)Includes $128.7 million and $237.6 million of RINs and environmental credits, reported at the lower of cost or net realizable value, as of March 31, 2024 and December 31, 2023, respectively. Our renewable volume obligation and other gross environmental credit obligations of $134.5 million and $286.9 million, are included in Other accrued liabilities on our condensed consolidated balance sheets as of March 31, 2024 and December 31, 2023, respectively.
As of March 31, 2024 and December 31, 2023, there was no reserve for the lower of cost or net realizable value of inventory. As of March 31, 2024 and December 31, 2023, the current replacement cost exceeded the LIFO inventory carrying value by approximately $42.8 million and $36.1 million, respectively.