Mammoth Energy Services, Inc. Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2019

Aggregate future minimum payments under these obligations in effect at June 30, 2019 are as follows (in thousands):



Year ended December 31:	Capital Spend Commitments		Minimum Purchase Commitments^(a)
Remainder of 2019	$	1,479	$	16,510
2020	—		19,894
2021	—		720
2022	—		80
2023	—		8
Thereafter	—		—
	$	1,479	$	37,212


a.	Included in these amounts are sand purchase commitments of $29.5 million. Pricing for certain sand purchase agreements is variable and, therefore, the total sand purchase commitments could be as much as $33.6 million. The minimum amount due in the form of shortfall fees under certain sand purchase agreements was $2.3 million as of June 30, 2019.

The letters of credit are categorized below (in thousands):