MINERAL INDUSTRY OF NEW MEXICO 
575 
 
the mineral-production statistics in table 1. Marathon Oil Co. began recovering
sulfur at the new Indian Basin natural gas processing plant in Eddy County.
Other producers were Pan American Petroleum Corp. and Phillips Petroleum
Co. at the Empire Abo and Artesia gas plants in Eddy County, and Climax Chemical
Co. and Sinclair Oil & Gas Co. at Monument and Tatum in Lea County. Phillips
Petro 
leum used the standard Claus process; others used the modified Claus process.

 
 Vermiculite.—Vermiculite, produced in Montana, was processed at the
Albuquerque plant of Southwest Vermiculite Co. The vermiculite was graded
and exfoliated before being bagged for use as insulation or aggregate.