Tight credit markets could impact our ability to obtain financing on reasonable terms or increase the cost of existing or future financing and interest rate fluctuations could adversely impact our results. As of December 31, 2023, we had $260.0 of outstanding debt obligations, all in the form of senior unsecured promissory notes issued under our master note agreement (the Master Note Agreement). The notes issued under our Master Note Agreement carry a fixed interest rate and consist of five series and are described in further detail in Note 9 of the Notes to Consolidated Financial Statements in this Form 10-K. We also have borrowing capacity under our revolving credit facility (the Credit Facility) of $835.0, but no loans were outstanding as of December 31, 2023. Loans under the Credit Facility generally bear interest at a rate per annum equal to Daily Simple Secured Overnight Financing Rate (SOFR), the rate on which may vary daily, and mature on September 28, 2027.
We currently have the capacity under our Credit Facility and Master Note Agreement to increase borrowings in the future to finance stock purchases, dividends, capital expenditures, working capital additions, acquisitions, or other investments. Should we seek to increase our borrowings during periods of volatility and disruption in the United States credit markets, financing may become more costly and more difficult to obtain. This was not a material consideration in 2023. The cost of servicing any existing balances on our Credit Facility could increase if interest rates increase due to the SOFR-based interest rate provided for under our Credit Facility.