|6 Months Ended|
Jun. 30, 2017
|Share-based Compensation [Abstract]|
During the three and six months ended June 30, 2017, the Company’s stock-based compensation cost was $2.6 million and $5.2 million, respectively, of which the Company capitalized $1.1 million and $2.1 million, respectively, relating to its exploration and development efforts. During the three and six months ended June 30, 2016, the Company's stock-based compensation cost was $3.3 million and $6.6 million, respectively, of which the Company capitalized $1.3 million and $2.6 million, respectively, relating to its exploration and development efforts.
The following table summarizes restricted stock activity for the six months ended June 30, 2017:
Unrecognized compensation expense as of June 30, 2017 related to restricted shares was $16.1 million. The expense is expected to be recognized over a weighted average period of 1.59 years.
The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.
Reference 1: http://www.xbrl.org/2003/role/presentationRef