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Inventories
 12 Months Ended
Dec. 31, 2022
Inventory Disclosure [Abstract]  
Inventories Inventories
Inventories at December 31, 2022 and 2021 consisted of the following (in thousands):
Titled InventorySupply and Offtake Agreement (1)Total
December 31, 2022
Crude oil and feedstocks$112,082 $265,536 $377,618 
Refined products and blendstock188,040 168,624 356,664 
Warehouse stock and other (2)307,701 — 307,701 
Total$607,823 $434,160 $1,041,983 
December 31, 2021
Crude oil and feedstocks$102,085 $199,282 $301,367 
Refined products and blendstock179,737 142,872 322,609 
Warehouse stock and other (2)166,341 — 166,341 
Total$448,163 $342,154 $790,317 
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(1)Please read Note 11—Inventory Financing Agreements for further information.
(2)Includes $258.2 million and $120.1 million of RINs and environmental credits, reported at the lower of cost or NRV, as of December 31, 2022 and 2021, respectively. Our renewable volume obligation and other gross environmental credit obligations of $549.8 million and $311.0 million, reported at market value, are included in Other accrued liabilities on our consolidated balance sheets as of December 31, 2022 and 2021, respectively.
Inventories valued on the LIFO method were approximately 20% of total inventories at both December 31, 2022 and 2021.
As of December 31, 2022, we had no reserve for the lower of cost or net realizable value of inventory. As of December 31, 2021, there was a $0.5 million reserve for the lower of cost or net realizable value of inventory. As of December 31, 2022 and December 31, 2021, the current replacement cost exceeded the LIFO inventory carrying value by approximately $46.4 million and $46.0 million, respectively.