revenues. As of June 30, 2024, three customers accounted for 17%, 12% and 11% of the Company’s accounts receivable. As of December 31, 2023, two customers accounted for 12% and 10% of the Company’s accounts receivable.
For the three months ended June 30, 2024, one supplier accounted for 18% of the Company’s total purchases. For the three months ended June 30, 2023, one supplier accounted for 15% of the Company’s total purchases. For the six months ended June 30, 2024, one supplier accounted for 14% of the Company’s total purchases. For the six months ended June 30, 2023, no supplier accounted for more than 10% of the Company’s total purchases. As of June 30, 2024, three suppliers accounted for 18%, 11% and 10% of the Company’s accounts payable. As of December 31, 2023, two suppliers accounted for 17% and 12% of the Company’s accounts payable.
10. Commitments and Contingencies
Tax Matters
We are subject to a number of state and local taxes that are not income-based. As many of these taxes are subject to assessment and audit by the taxing authorities, it is possible that an assessment or audit could result in additional taxes due. We accrue additional taxes when we determine that it is probable that we will have incurred a liability and we can reasonably estimate the amount of the liability. On June 16, 2022, Cause Number CV20-09-372, styled Solaris Oilfield Site Services v. Brown County Appraisal District, was presented to the 35th District Court of Brown County, Texas. The 35th District Court of Brown County ruled in favor of Brown County Appraisal District regarding the disqualification of our equipment for certain property tax exemptions. On July 20, 2022, we filed an appeal with the Eleventh District of Texas – Eastland Court of Appeals, and an appellate hearing relating thereto was held on April 13, 2023. A final ruling from the Eastland Court of Appeals was received on April 18, 2024. The appellate court ruled in our favor and upheld most, but not all, of our disputed property tax exemptions. On June 14, 2024, we reached a settlement agreement with Brown County Appraisal District for $0.9 million. As a result, in the three and six months ended June 30, 2024, we reversed $4.3 million of property tax expenses previously recorded through 2023 in connection with this case. Of this amount, $2.5 million was presented as gain on reversal of property tax contingency and $1.8 million reduced the cost of services in our condensed consolidated statements of operations.
Litigation and Claims
In the normal course of business, the Company is subjected to various claims, legal actions, contract negotiations and disputes. The Company provides for losses, if any, in the year in which they can be reasonably estimated. In management’s opinion, there are currently no such matters outstanding that would have a material effect on the accompanying condensed consolidated financial statements other than the following.
On February 28, 2024, the Company was served with a lawsuit by Masaba Inc. in the Wyoming District Court related to alleged intellectual property infringement. The complaint seeks, among other relief, unspecified compensatory damages, rescission, pre-judgment and post-judgment interest, costs and expenses. The Company believes these claims are without merit and will vigorously defend against them. At this time, we are unable to predict the ultimate outcome of this case or estimate the range of possible loss, if any.
Other Commitments
The Company has executed a guarantee of lease agreement with Solaris Energy Management, LLC, a related party of the Company, related to the rental of office space. The total future guarantee under the guarantee of lease agreement with Solaris Energy Management, LLC is $2.6 million as of June 30, 2024. Refer to Note 11. “Related Party Transactions” below for additional information regarding related party transactions recognized.
11. Related Party Transactions
The Company incurs costs for services provided by Solaris Energy Management, LLC, a company owned by William A. Zartler, the Chief Executive Officer and Chairman of the Board. These costs include rent paid for office space, travel services and other administrative costs, included in selling, general and administrative costs and other operating expense in the condensed consolidated statement of operations. For the three months ended June 30, 2024 and