Exhibit 12.1

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES
	Six Months
	Ended June 30,			Years Ended December 31,
	2017			2016		2015		2014		2013			2012
RATIO OF EARNINGS TO FIXED CHARGES
Fixed Charges:
Interest expensed and capitalized		2,207,275			1,831,667		2,214,635		3,480,646		4,395,353			2,775,848
Amortized premiums, discounts and capitalized expenses related to indebtedness		-			-		-		-		-			43
Total fixed charges		2,207,275			1,831,667		2,214,635		3,480,646		4,395,353			2,775,891
Earnings:
Add:
Pre-tax income (loss) from continuing operations before adjustment for income or loss from equity investees		(26,719,421	)		1,478,299		8,950,868		10,249,792		(17,063,319	)		7,642,643
Fixed charges		2,207,275			1,831,667		2,214,635		3,480,646		4,395,353			2,775,891
Less:
Interest capitalized		1,044,012			-		-		-		-			-
Total earnings (losses)		(25,556,158	)		3,309,966		11,165,503		13,730,438		(12,667,966	)		10,418,534
Ratio
Earnings to fixed charges		-			1.8		5.0		3.9		-			3.8

NOTE: For the six months ended June 30, 2017 and the year ended December 31, 2013, we incurred losses from operations, and as a result, our earnings were insufficient to cover our fixed charges by $2.2 million and $4.4 million, respectively.