For the nine months ended September 30, 2024, consolidated net operating revenue was $81,524,000 compared with $83,628,000 for the nine months ended September 30, 2023, a decrease of $2,104,000 or 2.5%. We had an increase of approximately $926,000 that was attributable to stations that we did not own or operate for the entire comparable period, offset by a decrease of $3,030,000 generated by stations we owned or operated for the comparable period in 2023. The decrease in same station revenue was primarily a result of decreases in gross local revenue of $5,552,000, and gross national revenue of $163,000, partially offset by increases in gross interactive revenue of $1,470,000 and gross political revenue of $735,000, and a decrease in agency commissions of $371,000 from 2023. The decrease in gross local revenues was attributable to decreases at our Clarksville, Tennessee; Columbus, Ohio; Des Moines, Iowa; Manchester, New Hampshire; and Milwaukee, Wisconsin markets. The decrease in gross national revenue is primarily due to a decrease at our Norfolk, Virginia market partially offset by increases at our Bellingham, Washington; Columbus, Ohio and Springfield, Illinois markets. The decrease in agency commissions is due to the decrease in national and local agency revenue. The increase in gross interactive revenue is primarily due to an increase in our streaming and website advertising revenue. The gross political revenue increased due to an increase in the number of national, state and local elections.
Station operating expense was $69,983,000 for the nine months ended September 30, 2024, compared with $66,870,000 for the nine months ended September 30, 2023, an increase of $3,113,000 or 4.7%. We had an increase of approximately $998,000 that was attributable to stations that we did not own or operate for the entire comparable period, combined with an increase of $2,115,000 generated by stations we owned or operated for the comparable period in 2023. The increase in same station operating expense was primarily a result of increases in compensation-related expense, bad debt expenses, interactive consulting and content expenses, sales rating survey expenses, and advertising and promotion expenses of $938,000, $659,000, $360,000, $219,000, and $116,000, respectively, partially offset by decreases in music licensing expenses of $146,000, respectively, from the comparable period in 2023.
We had operating income for the nine months ended September 30, 2024, of $1,371,000 compared to $8,693,000 for the nine months ended September 30, 2023, a decrease of $7,322,000. The decrease in operating income was the result of a decrease in net operating revenue and an increase in station operating expenses noted above, and an increase in corporate general and administrative expenses of $1,204,000 and an increase in other operating (income) expense, net of $901,000. The increase in corporate general and administrative expenses was primarily due to increases in stock-based compensation, compensation-related expenses, computer software and cyber security expenses and travel-related expenses of $704,000, $414,000, $255,000 and $153,000, respectively, partially offset by decreases in insurance related costs and other consulting expenses of $196,000 and $74,000, respectively. In 2024, we recorded a loss on the sale of fixed assets and intangibles of $1,026,000 compared to a loss on the sale of fixed assets of $125,000 in 2023. The loss on sale of fixed assets and intangibles recorded in other operating expense in 2024 primarily relates to the sale of WYSE-AM, W275CP translator and W248CM translator located in our Asheville, North Carolina market and the relinquishment of our FCC license for KBAI-AM located in our Bellingham, Washington market, described in footnote 7 (Acquisitions and Dispositions).
We generated net income of $2,191,000 ($0.35 per share on a fully diluted basis) during the nine months ended September 30, 2024, compared to $6,999,000 ($1.15 per share on a fully diluted basis) for the nine months ended September 30, 2023 ended, a decrease of $4,808,000. The decrease in net income is primarily due to the decrease in operating income, described above, an increase in interest expense of $105,000, a decrease in interest income of $218,000 partially offset by an increase in other income of $1,092,000 and a decrease in income tax expense of $1,745,000. The increase in interest expense is due to an increase in debt outstanding. The decrease in interest income is related to the decrease in the amount of short-term investment accounts. The increase in other income is due to the $1,133,000 received related to the sale of an investment in BMI and $78,000 in insurance proceeds received as a result of weather-related damages. The gain on sale of investment and gain on insurance claims are recorded in other (income) expense, net in the Company’s Condensed Consolidated Statement of Operation. The decrease in our income tax expense is due to lower income before income tax expense for the comparable period.