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## COMSTOCK RESOURCES, INC. AND SUBSIDIARIES NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued) 

Results of continuing operations include the following non-routine items of income (expense), which are presented before the effect of income taxes: 

Gain on sales of oil and gas properties ................... Gain on sales of marketable securities .................... Impairments of unproved oil and gas properties ................ Impairments of proved oil and gas properties ................ 

Gain (loss) on sale of oil and gas properties ................... Gain on sales of marketable securities .................... Loss on early extinguishment of debt ........................ Impairments of unproved oil and gas properties ................ Impairments of proved oil and gas properties ................ 

(12) Oil and Gas Reserves Information (Unaudited) 

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(In thousands) 

Set forth below is a summary of the changes in Comstock’s net quantities of oil and natural gas reserves for its continuing operations for each of the three years in the period ended December 31, 2013: 

## Proved Reserves: 

Beginning of year ....................... Revisions of previous estimates .......... Extensions and discoveries ............. Purchases of minerals in place ........... Disposals of minerals in place ........... Production .......................... End of year .......................... 

## Proved Developed Reserves: 

Beginning of year ....................... End of year ............................ 

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