Commitments and Contingencies	12 Months Ended
Commitments and Contingencies	Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Note 14. Commitments and Contingencies Commitments We have entered into long-term commitments to purchase CO2 that are either non-cancelable or cancelable only upon the occurrence of specified future events. The commitments continue for up to 8 years. The price we will pay for CO2 generally varies depending on the amount of CO2 delivered and the price of oil. Our annual commitment under these contracts could range from $15 million to $23 million per year, assuming a $60 per Bbl NYMEX oil price. In addition, we have a processing fee contract related to our overriding royalty interest in the CO2 at LaBarge Field. We estimate our annual commitment under this contract could range from $8 million to $11 million per year based on current processing fee rates. We are party to long-term contracts that require us to deliver CO2 to our industrial CO2 customers at various contracted prices. Based upon the maximum amounts deliverable as stated in the industrial contracts, we estimate that we may be obligated to deliver up to 673 Bcf of CO2 to these customers over the next 14 years. The maximum volume required in any given year is approximately 276 MMcf/d, which we judge to be minor given the size of our Jackson Dome proved CO2 reserves at December 31, 2020, our current production capabilities and our projected levels of CO2 usage for our own tertiary flooding program. Chapter 11 Proceedings On July 30, 2020, Denbury Resources Inc. and each of its wholly-owned subsidiaries filed for relief under chapter 11 of the Bankruptcy Code. The chapter 11 cases were administered jointly under the caption “In re Denbury Resources Inc., et al., Case No. 20-33801”. On September 2, 2020, the Bankruptcy Court entered the Confirmation Order and on the Emergence Date, all of the conditions of the Plan were satisfied or waived and the Plan became effective and was implemented in accordance with its terms. On September 30, 2020, the Bankruptcy Court closed the chapter 11 cases of each of Denbury Inc.’s wholly-owned subsidiaries. The chapter 11 case captioned “In re Denbury Resources Inc., et al., Case No. 20-33801” will remain pending until the final resolution of all outstanding claims. Litigation We are involved in various lawsuits, claims and regulatory proceedings incidental to our businesses. While we currently believe that the ultimate outcome of these proceedings, individually and in the aggregate, will not have a material adverse effect on our financial position, results of operations or cash flows, litigation is subject to inherent uncertainties. We accrue for losses from litigation and claims if we determine that a loss is probable and the amount can be reasonably estimated. Riley Ridge Helium Supply Contract Claim As part of our 2010 and 2011 acquisitions of the Riley Ridge Unit and associated gas processing facility that was under construction, the Company assumed a 20-year helium supply contract under which we agreed to supply the helium separated from the full well stream by operation of the gas processing facility to a third-party purchaser, APMTG Helium, LLC (“APMTG”). As the gas processing facility was shut-in during mid-2014 due to significant technical issues, we were not able to supply helium under the helium supply contract. In a case filed in November 2014 in the Ninth Judicial District Court of Sublette County, Wyoming, APMTG claimed multiple years of liquidated damages for non-delivery of volumes of helium specified under the helium supply contract. The Company claimed that its contractual obligations were excused by virtue of events that fall within the force majeure provisions in the helium supply contract. On March 11, 2019, the trial court entered a final judgment that a force majeure condition did exist, but such condition only excused the Company’s performance for a 35-day period in 2014, and as a result the Company should pay APMTG liquidated damages and interest thereon for all other time periods for performance from contract commencement to the close of evidence (November 29, 2017). On December 4, 2020, the Wyoming Supreme Court entered a judgment affirming the trial court’s ruling on all counts and, as a result, the Company paid total liquidated damages (including interest) of $52.1 million to APMTG on December 23, 2020 in full satisfaction of all claims. The Company had previously recorded an accrual for these costs in “Accounts payable and accrued liabilities” in our Consolidated Balance Sheets. Other Contingencies We are subject to audits for various taxes (income, sales and use, and severance) in the various states in which we operate, and from time to time receive assessments for potential taxes that we may owe. In the past, settlement of these matters has not had a material adverse financial impact on us, and currently we have no material assessments for potential taxes. We are subject to various possible contingencies that arise primarily from interpretation of federal and state laws and regulations affecting the oil and natural gas industry. Such contingencies include differing interpretations as to the prices at which oil and natural gas sales may be made, the prices at which royalty owners may be paid for production from their leases, environmental issues and other matters. Although we believe that we have complied with the various laws and regulations, administrative rulings and interpretations thereof, adjustments could be required as new interpretations and regulations are issued. In addition, production rates, marketing and environmental matters are subject to regulation by various federal and state agencies.