7225 South 85th East Avenue • Suite 400
Tulsa, OK 74133
(918) 252-5090 • (800) 331-3993 • Fax (918) 252-5433

Email Links:

Henry McCabe

Verne McCabe

Gary Rockel

H. Chris McCabe



Plant Locations:

Royal Black Granules Plant
1208 So. 190th
Weir, KS 66781

Phone: 620/231-0224
Fax: 620/232-3216
H. Chris McCabe
Plant Manager

Nebraska Granules Plant
4500 West Pella Road
Hallam, NE 68638

Phone: 402/787-2003
Fax: 402/787-2005
Keith Burger
Plant Superintendent

Rhyolite Headlap Granules Plant
1440 Woodland Road
Davis, OK 73030
Phone: 580/369-3660
Fax: 580/369-3661
Blake R. Wallace

Plant Manager