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Business Segments (Tables)
3 Months Ended
Mar. 31, 2013
Segment Reporting [Abstract]  
Revenue components of commercial/industrial real estate segment
The mineral resources segment receives oil and mineral royalties from the exploration and development companies who extract or mine the natural resources from our land. The following table summarizes these activities:
 
 
Three Months Ended
($ in thousands)
 
March 31, 2013
 
March 31, 2012
Oil and gas
 
$
2,254

 
$
3,331

Rock aggregate
 
140

 
112

Cement
 
160

 
149

Land lease for oil exploration
 
312

 
314

 
 
$
2,866

 
$
3,906

The revenue components of our commercial/industrial real estate development segment for the three months ending March 31 are as follows:
(In thousands)
2013
 
2012
Commercial leases
$
1,659

 
$
1,416

Grazing leases
374

 
293

Land Sale

 
141

All other land management ancillary services
689

 
298

 
$
2,722

 
$
2,148