At December 31, 2021, we had approximately 42,000 developed and undeveloped net acres held at a weighted average royalty of 17.0%. Our net acres standardized to 1/8th royalty equates to approximately 57,000 net royalty acres, including approximately 3,976 net royalty acres owned through our equity interest in AllDale III.
Oil & Gas Production - Year Ended 12/31/2021
The following table presents our estimated net proved oil & gas reserves, including our share of reserves owned through our equity interest in AllDale III, as of December 31, 2020 based on the reserve report prepared by our internal engineering team and audited by Netherland, Sewell & Associates, Inc. The reserve report has been prepared in accordance with the rules and regulations of the SEC. All of our proved reserves included in the reserve report are located in the continental United States.
Oil & Gas Reserves - Year Ended 12/31/2021
Any inquiries regarding our Oil & Gas Interests can be directed to Alliance.Royalty@arlp.com