Divestitures	9 Months Ended
Sep. 30, 2016
Property, Plant and Equipment Impairment or Disposal [Abstract]
Divestitures	DIVESTITURES Oil and Natural Gas We sold non-core oil and natural gas assets, net of related expenses, for $43.6 million during the first nine months of 2016, compared to $0.2 million during the first nine months of 2015. Proceeds from those sales reduced the net book value of our full cost pool with no gain or loss recognized. Contract Drilling During the second quarter of 2015, we recorded a write-down of approximately $8.3 million pre-tax on drilling equipment being held for sale. During the third quarter of 2015, we sold 30 drilling rigs and other drilling equipment at auction. The proceeds from that sale, less costs to sell, was less than the $11.0 million net book value resulting in a loss of $7.3 million pre-tax.

Divestitures

9 Months Ended

Sep. 30, 2016

Property, Plant and Equipment Impairment or Disposal [Abstract]

DIVESTITURES

Oil and Natural Gas

We sold non-core oil and natural gas assets, net of related expenses, for $43.6 million during the first nine months of 2016, compared to $0.2 million during the first nine months of 2015. Proceeds from those sales reduced the net book value of our full cost pool with no gain or loss recognized.

Contract Drilling

During the second quarter of 2015, we recorded a write-down of approximately $8.3 million pre-tax on drilling equipment being held for sale. During the third quarter of 2015, we sold 30 drilling rigs and other drilling equipment at auction. The proceeds from that sale, less costs to sell, was less than the $11.0 million net book value resulting in a loss of $7.3 million pre-tax.