Commitments and Contingencies

12 Months Ended

Dec. 31, 2014

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Commitments and Contingencies

Rental and lease expenses were $21.0 million, $20.5 million and $19.9 million for the years ended December 31, 2014, 2013 and 2012, respectively. The rental and lease expenses primarily relate to compressor rentals during the year and the lease of our office space in Houston, Texas, which was set to expire in February 2015. In January of 2015 the Company entered into a new eleven year lease agreement for office space in Houston, Texas. The operating lease commences on March 1, 2015 and may be terminated after seven years. The minimum contractual obligations are approximately $25 million in the aggregate. We will amortize the total payments under the lease agreement on a straight-line basis over the term of the lease.

Our remaining minimum annual obligations under non-cancelable operating lease commitments were $12.6 million for 2015, less than $0.1 million for 2016 and approximately $12.6 million in total. The remaining minimum annual obligations under non-cancelable operating lease commitments primarily relate to short-term compressor rental agreements.

Our employment agreement liabilities for certain named executive officers, as detailed in our most recent proxy statement, constitute the majority of other long-term liabilities on the balance sheet at both December 31, 2014 and 2013.

Our remaining gas transportation and processing minimum obligations were $12.7 million for 2015, $12.5 million for 2016, $10.1 million for 2017, $10.2 million for 2018, $8.7 million for 2019 and $61.6 million in the aggregate.

In the ordinary course of business, we have been party to various legal actions, which arise primarily from our activities as operator of oil and natural gas wells. In management's opinion, the outcome of any such currently pending legal actions will not have a material adverse effect on our financial position or results of operations.