Organization and Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Long-Lived Assets, by Reporting Segment

The drilling rigs in our fleet are currently assigned to the following divisions:

Drilling Division	Rig Count
South Texas	10
West Texas	8
North Dakota	8
Appalachia	4
Colombia	8
	38

Schedule of Drilling Contracts [Table Text Block]

Including these three contracts in Colombia and the new-build drilling rig that we deployed in early October 2015, 19of our drilling rigs are currently earning revenues under term contracts, which if not renewed prior to the end of their terms, will expire as follows:

		Term Contract Expiration by Period
	Total Term Contracts	Within 6 Months	6 Months to 1 Year	1 Year to 18 Months	18 Months to 2 Years	2 to 4 Years
United States	16	6	5	—	—	5
Colombia	3	—	1	—	—	2
	19	6	6	—	—	7