The Company reported Adjusted EBITDAX, a non-GAAP measure defined below, of approximately $31.1 million for the three months ended June 30, 2021, compared to $7.0 million for the same period last year, an increase attributable primarily to the incremental contribution from the properties we acquired in the Mid-Con Acquisition and the Silvertip Acquisition in the first quarter of 2021. Recurring Adjusted EBITDAX (defined below as Adjusted EBITDAX exclusive of non-recurring business combination expenses and strategic advisory fees) was $33.1 million for the 2021 quarter, compared to $7.5 million for the 2020 quarter.
Revenues for the second quarter of 2021 were approximately $83.6 million compared to $17.8 million for the second quarter of 2020, an increase attributable primarily to higher commodity prices and an approximate 50% increase in production sales resulting from the properties acquired in the Mid-Con Acquisition and the Silvertip Acquisition.
Production sales for the three months ended June 30, 2021 were approximately 2.2 MMBoe (62% liquids), or 24.1 MBoe per day, compared to approximately 1.5 MMBoe (44% liquids), or 16.1 MBoe per day in the prior year quarter. Net oil production sales were approximately 9,800 barrels per day for the three months ended June 30, 2021, compared to approximately 3,700 barrels per day in the prior year quarter, an increase attributable to the production from the properties acquired in the Mid-Con Acquisition and the Silvertip Acquisition. Net natural gas production sales increased slightly to approximately 55.4 MMcf per day during the three months ended June 30, 2021, compared with approximately 54.0 MMcf per day during the three months ended June 30, 2020. Net natural gas liquids (“NGLs”) production sales increased to approximately 5,100 barrels per day during the three months ended June 30, 2021, compared to approximately 3,400 barrels per day in the prior year quarter due to the new, higher liquid content production acquired in the Silvertip Acquisition.
The weighted average equivalent sales price realized for the three months ended June 30, 2021 was $37.93 per Boe compared to $12.14 per Boe for the three months ended June 30, 2020. The lower prior year prices were attributable to the decline in realized commodity prices in early 2020 as a result of the initial spread of the COVID-19 pandemic and its negative impact on the global demand for oil and natural gas, combined with the failure by the Organization of Petroleum Exporting Countries and Russia to reach an agreement on lower production quotas until April 2020. The increase in domestic vaccination programs has helped reduce the spread of COVID-19 in the current year, which has contributed to an improvement in the economy and the demand for oil and natural gas, and higher realized prices for crude oil, natural gas and NGLs. The realized price of crude oil averaged $63.03 per Bbl in the current year quarter compared to an average $22.94 per Bbl in the prior year quarter. The realized price of natural gas averaged $2.94 per Mcf in the current year quarter compared to an average of $1.35 per Mcf in the prior year quarter, and the realized price of NGLs averaged $26.46 per Bbl in the current year quarter compared to an average of $10.81 per Bbl in the prior year quarter.
Operating expenses for the three months ended June 30, 2021 were approximately $36.5 million, compared to $15.0 million for the same period last year, an increase attributable primarily to the properties acquired in the Mid-Con Acquisition and the Silvertip Acquisition. Included in operating expenses are direct lease operating expenses, transportation and processing costs, workover expenses, production and ad valorem taxes and other expenses related to plants and pipelines. Operating expenses exclusive of production and ad valorem taxes of $6.4 million and $0.8 million for the respective 2021 and 2020 quarters, were approximately $30.2 million for the 2021 quarter compared to approximately $14.2 million for the prior year quarter.
DD&A expense for the three months ended June 30, 2021 was $11.5 million, or $5.22 per Boe, compared to $5.1 million, or $3.47 per Boe, for the 2020 quarter. The higher depletion expense in the current year quarter was primarily due to the properties acquired in the Mid-Con Acquisition and the Silvertip Acquisition.
Total G&A expenses were $13.5 million, or $6.14 per Boe, for the three months ended June 30, 2021, compared to $7.8 million, or $5.33 per Boe, for the prior year quarter. Recurring G&A expenses (defined as Total G&A expenses exclusive of business combination expenses and non-recurring strategic advisory fees of