TIORCO, LLC Joint Venture

3 Months Ended

Mar. 31, 2016

Equity Method Investments And Joint Ventures [Abstract]

15.	TIORCO, LLC JOINT VENTURE

In October 2015, the Company and its partner, Nalco Company (a subsidiary of Ecolab Inc.), made the decision to dissolve their equally owned and operated TIORCO, LLC (TIORCO) enhanced oil recovery joint venture. As a result of the dissolution, TIORCO incurred fourth quarter 2015 exit costs, for which the Company recorded its share in the three- and twelve-month periods ended December 31, 2015. The Company made a final cash investment of $2,900,000 to TIORCO during the three-month period ended March 31, 2016, to fund the exit costs and other final cash requirements for dissolving the joint venture. The additional funding did not materially differ from the exit costs recorded as of December 31, 2015. Legal dissolution of TIORCO is finalized, and no further significant costs or expenditures related to the joint venture are expected to be incurred.