June 30, 2023. The larger decrease in accrued expenses at June 30, 2023 versus December 31, 2022, compared to the same prior-year period, was primarily related to higher payments in the first half of 2023 for certain union and nonunion performance-based incentive plans accrued at December 31, 2022, versus the payments in the first half of 2022 for accruals as of December 31, 2021, and the timing of wage and vacation accruals.
During the six-month period ended June 30, 2023, we funded $80.3 million of capital expenditures, net of proceeds from asset sales, including property purchases and the renovation of properties for our Asset-Based network. See Capital Expenditures below for estimated annual expenditure amounts for 2023.
We have financed the purchase of certain revenue equipment, other equipment, and software through promissory note arrangements. Cash used to fund these promissory note payments during the six months ended June 30, 2023, was $35.1 million. During the six months ended June 30, 2023, we repurchased 453,296 shares of our common stock under our share repurchase program for an aggregate cost of $41.2 million. We also continued to return capital to our shareholders with our quarterly dividend payment, which totaled $5.8 million during the six months ended June 30, 2023. Our dividends and share repurchase program are further discussed in Other Liquidity below.
Cash Flows from Discontinued Operations
Net income from discontinued operations increased $50.8 million for the six months ended June 30, 2023, compared to the same period of 2022, primarily due to the $52.3 million after-tax gain on the sale of FleetNet, net of transaction costs. Net cash provided by operating activities of discontinued operations was $0.8 million during the six months ended June 30, 2023, compared to cash used in operating activities of $1.3 million during the six months ended June 30, 2022, reflecting the routine operations of FleetNet.
Net cash used in investing activities of discontinued operations was $0.4 million and $2.2 million for the six months ended June 30, 2023 and 2022, respectively. Net cash used in financing activities of discontinued operations was $0.5 million for the six months ended June 30, 2023, compared to net cash provided by financing activities of $3.5 million for the same prior-year period. Net cash of discontinued operations for both investing and financing activities did not have a material effect on the operations disclosed in Note C to our consolidated financial statements included in Part I, Item 1 of this Quarterly Report on Form 10-Q. Net cash activity for FleetNet has not materially impacted our operations in recent years, nor is the absence of cash flows from the discontinued operations of FleetNet expected to affect future liquidity or capital resources.
Financing Arrangements
We financed the purchase of $3.5 million of revenue equipment through notes payable during the six months ended June 30, 2023. Future payments due under our notes payable totaled $194.7 million, including interest, as of June 30, 2023, for a decrease of $34.5 million from December 31, 2022.
Our financing arrangements and the scheduled maturities of our long-term debt obligations, are disclosed in Note G to our consolidated financial statements included in Part I, Item 1 of this Quarterly Report on Form 10-Q.
Contractual Obligations
We have purchase obligations, consisting of authorizations to purchase and binding agreements with vendors, relating to revenue equipment used in our Asset-Based and Asset-Light operations, other equipment, facility improvements, software, service contracts, and other items for which amounts were not accrued in the consolidated balance sheet as of June 30, 2023. These purchase obligations totaled $198.0 million as of June 30, 2023, with $188.4 million expected to be paid within the next year, provided that vendors complete their commitments to us. As of June 30, 2023, the amount of our purchase obligations has increased $97.1 million from December 31, 2022, primarily related to revenue equipment, which is included in our 2023 capital expenditure plan.
As of June 30, 2023, contractual obligations for operating lease liabilities, primarily related to our Asset-Based service centers, totaled $291.8 million, including imputed interest, for an increase of $59.0 million from December 31, 2022. The scheduled maturities of our operating lease liabilities as of June 30, 2023, are disclosed in Note F to our consolidated