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Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2012
Concentration of Risk

Concentration of Risk

Year Ended December 31,

2012

2011

Dart Container Corporation

43.0%

47.3%

Owens Corning

25.4%

23.4%

McMoran Exploration

12.8%

 2.9%

Intangible Assets

The following tables represent gross intangible assets, accumulated amortization and amortization expense for the year ended December 31, 2012:

As of December 31, 2012

Gross

Net

Carrying

Accumulated

Carrying

Amount

Amortization

Value

Amortized intangible assets

Contracts

$

  2,000,600

$

   (2,000,600)

$

             -  

Aggregate amortization expense:

For the year ended 12/31/2012

$

  1,229,020

Asset retirement obligation liability

Asset retirement obligation liability

Asset retirement obligation, beginning of year

$

     1,036,553

Revisions in estimated liabilities

          320,381

Asset retirement obligation accretion

          105,040

Liabilities sold

          (49,687)

Liabilities settled

            (9,427)

Asset retirement obligation, end of year

       1,402,860

Less current portion

        (595,534)

Asset retirement obligation, long term

$

        807,326