Interest expense, net was $4.5 million and $4.0 million for the three months ended September 30, 2023 and 2022, respectively. The change in interest expense was primarily due to higher interest rates and the amortization and write-off of deferred issuance costs partially offset by lower debt outstanding during the period.
Average outstanding borrowings under our Revolving Credit Facility were $121.8 million and $214.9 million for the three months ended September 30, 2023 and 2022, respectively.
Current income tax (expense) benefit was ($1.4) million for the three months ended September 30, 2023. See additional information discussed in Note 15 of the Notes to Unaudited Condensed Consolidated Financial Statements included under “Item 1. Financial Statements” of this quarterly report. No current income tax expense was recorded for the three months ended September 30, 2022.
Deferred income tax benefit (expense) was $4.7 million for the three months ended September 30, 2023. Starting in the first quarter of 2023, we achieved three years of cumulative income which allowed the release of the valuation allowance. See additional information discussed in Note 15 of the Notes to Unaudited Condensed Consolidated Financial Statements included under “Item 1. Financial Statements” of this quarterly report. No deferred income tax benefit was recorded for the three months ended September 30, 2022.
For the Nine Months Ended September 30, 2023 Compared to the Nine Months Ended September 30, 2022
We reported net income of $349.2 million and $27.8 million for the nine months ended September 30, 2023 and 2022, respectively.
Oil, natural gas and NGL revenues were $210.1 million and $319.6 million for the nine months ended September 30, 2023 and 2022, respectively. Average net production volumes were approximately 20.4 MBoe/d and 20.6 MBoe/d for the nine months ended September 30, 2023 and 2022, respectively. The average realized sales price was $37.72 per Boe and $56.76 per Boe for the nine months ended September 30, 2023 and 2022, respectively. The decrease in revenue and average realized sales price was primarily due to lower commodity prices.
Other revenues were $18.5 million and $39.9 million for the nine months ended September 30, 2023 and 2022, respectively. The change in other revenues was primarily related to LOPI insurance proceeds of $17.9 million for the nine months ended September 30. 2023 compared to $39.6 million of LOPI proceeds for the nine months ended September 30, 2022.
Lease operating expense was $104.9 million and $98.3 million for the nine months ended September 30, 2023 and 2022, respectively. On a per Boe basis, lease operating expenses were $18.84 and $17.45 for the nine months ending September 30, 2023 and 2022, respectively. The change in lease operating expense was primarily related to higher costs associated with the restart of operations at Beta.
Gathering, processing and transportation expense was $15.7 million and $22.8 million for the nine months ended September 30, 2023 and 2022, respectively. On a per Boe basis, gathering, processing and transportation expenses were $2.83 and $4.05 for the nine months ending September 30, 2023 and 2022, respectively. The decrease in gathering, processing and transportation expense was primarily driven by the expiration of the MVC fee in East Texas/North Louisiana (November 2022) and in Oklahoma (June 2023) and lower commodity prices.
Taxes other than income were $15.4 million and $25.3 million for the nine months ended September 30, 2023 and 2022, respectively. On a per Boe basis, taxes other than income were $2.77 and $4.50 for the nine months ended September 30, 2023 and 2022, respectively. The decrease was primarily related to a reduction in production taxes due to lower commodity prices. In addition, we received a $0.4 million from a one-time positive severance tax adjustment related to our non-operated Eagle Ford operations.
DD&A expense was $20.4 million and $17.8 million for the nine months ended September 30, 2023 and 2022, respectively. The increase in DD&A expense was primarily driven by production at Beta.