Amarillo, TX

S.C.C.M. Corp.

Avondale Operating, Inc.

Slover Family, Inc.

Kirby Royalties, Inc.

Intrepid Energy, LLC

Slover Intrepid Energy, L.L.C.

Ron Slover Properties, LLC

Ephrata, PA

Zimmerman Industries, Inc.

Camdenton, MO

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