content_image/243711.jpg content_image/243712.jpg content_image/243713.jpg
## Producing Well Summary 

The following table sets forth the gross and net producing oil and natural gas wells in which we owned an interest at December 31, 2013: 

<img src='content_image/243711.jpg'>

We operate 895 of the 1,535 producing wells presented in the above table. As of December 31, 2013, we owned interests in 14 wells containing multiple completions, which means that a well is producing from more than one completed zone. Wells with more than one completion are reflected as one well in the table above. 

## Acreage 

The following table summarizes our developed and undeveloped leasehold acreage at December 31, 2013, all of which is onshore in the continental United States. We have excluded acreage in which our interest is limited to a royalty or overriding royalty interest. 

<img src='content_image/243712.jpg'>

Our undeveloped acreage expires as follows: 

<img src='content_image/243713.jpg'>

