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Trade Accounts Receivable
 12 Months Ended
Dec. 31, 2024
Receivables [Abstract]  
Trade Accounts Receivable Trade Accounts Receivable
The following table summarizes our trade accounts receivable from customers as of the dates presented:
December 31,
20242023
Trade accounts receivable
Rentals$14,218 $32,871 
Sales and aftermarket services2,657 7,138 
16,875 40,009 
Less: Allowance for credit losses(1,249)(823)
Total trade accounts receivable, net$15,626 $39,186 

Our trade accounts receivable consist of customer obligations due under normal trade terms for (i) operating leases for the use of our natural gas compressors, (ii) the sale of compressors and flare systems and (iii) the performance of aftermarket services. 

Major Customers and Concentration of Credit Risk

Rental revenue and sales from Occidental Permian, LTD. (“Oxy”) in 2024, 2023 and 2022 amounted to 54 percent, 50 percent and 42 percent of revenue, respectively. No other single customer accounted for more than 10 percent of our revenues in 2024, 2023 and 2022. Oxy’s accounts receivable balances amounted to 52 percent and 64 percent of our accounts receivable as of December 31, 2024 and 2023, respectively. No other customers amounted to more than 10 percent of our accounts receivable as of December 31, 2024 and 2023.

Allowance for Credit Losses

The following table summarizes the changes in our allowance for credit losses for the periods presented:
 Year Ended December 31,
202420232022
Beginning balance$823 $338 $1,129 
Provision for credit losses433 492 — 
Write-offs(7)(7)(791)
Ending balance$1,249 $823 $338 

Management believes that the allowance is adequate; however, actual write-offs may exceed the recorded allowance.