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Accounts Receivable and Revenues from Contracts with Customers
3 Months Ended
Mar. 31, 2019
Receivables [Abstract]  
Accounts Receivable and Revenues from Contracts with Customers
Accounts Receivable and Revenues from Contracts with Customers
Accounts Receivable and Major Customers
The following table summarizes our accounts receivable by type as of the dates presented:
 
March 31,
 
December 31,
 
2019
 
2018
Customers
$
61,560

 
$
59,030

Joint interest partners
8,010

 
6,404

Other
629

 
640

 
70,199

 
66,074

Less: Allowance for doubtful accounts
(51
)
 
(36
)
 
$
70,148

 
$
66,038



For the three months ended March 31, 2019, three customers accounted for $69.0 million, or approximately 66%, of our consolidated product revenues. The revenues generated from these customers during the three months ended March 31, 2019, were $39.9 million, $14.5 million and $14.6 million, or 38%, 14% and 14% of the consolidated total, respectively. As of March 31, 2019 and December 31, 2018, $42.9 million and $34.8 million, or approximately 70% and 59%, of our consolidated accounts receivable from customers was related to these customers. No significant uncertainties exist related to the collectability of amounts owed to us by any of these customers. For the three months ended March 31, 2018, three customers accounted for $70.6 million, or approximately 91%, of our consolidated product revenues.