Operating Revenues. Oil, natural gas and natural gas liquids revenues were $64.3 million and $81.4 million for the three months ended March 31, 2023 and 2022, respectively. The decrease in revenues is primarily attributable to a decrease in our average realized prices partially offset by higher production volumes in 2023 compared to 2022. Average realized prices (excluding the effects of hedging arrangements) decreased approximately $17.18 per Boe for the three months ended March 31, 2023 when compared with the same periods in 2022. The amount we realize for our production depends predominantly upon commodity prices, which are affected by changes in market demand and supply, as impacted by overall economic activity, weather, transportation take-away capacity constraints, inventory storage levels, quality of production, basis differentials and other factors.
Production averaged 16,200 Boe/d and 14,767 Boe/d for the three months ended March 31, 2023 and 2022, respectively. Production was higher in the first quarter of 2023 compared with the same period in 2022 due largely to putting additional operated wells online in 2022 partially offset by natural production declines on our existing producing wells.
Lease Operating Expenses. Lease operating expenses were $11.7 million and $11.5 million for the three months ended March 31, 2023 and 2022, respectively. On a per unit basis, lease operating expenses were $8.02 per Boe and $8.67 per Boe for the three months ended March 31, 2023 and 2022, respectively. The increase in lease operating expenses in 2023 results primarily from an inflationary market increase in maintenance, power, and chemical costs, while the per unit cost decreased due to the increase in average production as fixed costs represent a large portion of our lease operating expenses.
Workover and Other Expenses. Workover and other expenses were $1.3 million and $0.9 million for the three months ended March 31, 2023 and 2022, respectively. On a per unit basis, workover and other expenses were $0.92 per Boe and $0.65 per Boe for the three months ended March 31, 2023 and 2022, respectively. The increased workover and other expenses in 2023 relate to more significant workover projects undertaken in the current period as well as inflationary and market increases in service and material costs in 2023.
Taxes Other than Income. Taxes other than income were $3.2 million and $5.0 million for the three months ended March 31, 2023 and 2022, respectively. Severance taxes are based on realized prices and volumes at the wellhead, while ad valorem taxes are tied to the annual valuation of our properties. As revenues or volumes from oil and natural gas sales increase or decrease, severance taxes on these sales also increase or decrease. On a per unit basis, taxes other than income were $2.19 per Boe and $3.73 per Boe for the three months ended March 31, 2023 and 2022, respectively, largely driven by the reduced commodity pricing experienced in 2023.
Gathering and Other Expenses. Gathering and other expenses were $16.5 million and $15.3 million for the three months ended March 31, 2023 and 2022, respectively. Gathering and other expenses include gathering fees paid to third parties on our oil and natural gas production and operating expenses of our gathering support infrastructure. Our gathering and other expenses are primarily driven by the amount and location of natural gas production, the concentration of H2S in our sour gas produced, and the amounts paid to treat our sour gas volumes, either through our own hydrogen sulfide treating plant or through third parties. For the quarter ended March 31 2023, our natural gas production volumes were relatively flat compared to the same period in 2022; however, increased production of higher acid natural gas in our Monument Draw area in 2023 requiring H2S treatment contributed to higher gathering and other expenses compared to 2022.
General and Administrative Expense. General and administrative expense was $4.9 million and $4.6 million for the three months ended March 31, 2023 and 2022, respectively. The increase in general and administrative expense for the quarter ended March 31, 2023 compared with 2022 is primarily associated with an increase in professional fees partially offset by a decrease in payroll and benefits. On a per unit basis; however, general and administrative expenses were $3.37 per Boe and $3.46 per Boe for the three months ended March 31, 2023 and 2022, respectively, due to the increase in production volumes.
Depletion, Depreciation, and Amortization Expense. Depletion for oil and natural gas properties is calculated using the unit of production method, which depletes the capitalized costs of evaluated properties plus future development costs based on the ratio of production for the current period to total reserve volumes of evaluated properties as of the beginning of the period. Depletion expense was $15.8 million and $10.1 million for the three months ended March 31,