ProPetro Holding (PUMP) S-3ASR Automatic shelf registration

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Exhibit 12.1

RATIO OF EARNINGS TO FIXED CHARGES AND PREFERRED STOCK DIVIDENDS
(In thousands, except Ratio Data)

			Year Ended
	Three Months Ended March 31, 2018
			December 31, 2017		December 31, 2016			December 31, 2015
Earnings:
Income (loss) from Continuing Operations before Taxes		47,061		15,741		(81,119	)		(71,241	)
Add: Interest Expense		1,261		7,347		20,387			21,641
Add: Lease Interest Estimated based on 1/3 of Lease Rent		125		463		451			454
Less: Capitalized Interest		—		—		—			—
Total Earnings		48,447		23,551		(60,281	)		(49,146	)
Fixed Charges:
Interest Expense		1,261		7,347		20,387			21,641
Lease Interest Estimated based on 1/3 of Lease Rent		125		463		451			454
Total Fixed Charges		1,386		7,810		20,838			22,095
Ratio of Earnings to Fixed Charges		35.0		3.0		—	(1)		—	(2)
Preferred Stock Dividend Requirements		—		—		—			—
Total Fixed Charges Plus Total Preferred Stock Dividends		1,386		7,810		20,838			22,095
Ratio of Earnings to Combined Fixed Charges and Preferred Stock Dividends		35.0		3.0		—	(1)		—	(2)

(1)

Earnings were inadequate to cover fixed charges by $81.1 million for the year ended December 31, 2016.

(2)

Earnings were inadequate to cover fixed charges by $71.2 million for the year ended December 31, 2015.

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Exhibit 12.1

RATIO OF EARNINGS TO FIXED CHARGES AND PREFERRED STOCK DIVIDENDS (In thousands, except Ratio Data)