Contact Us

Bullnanza Stud Services | Where dreams are conceived

Office Phone: 405-377-8037
Texas Location
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Kolten and Sarah Thigpen


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Jason Holder and Kim McNatt​


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Mari Calloway,
Lab Manager


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Matt Campbell
Bull Collection Associate


Oklahoma Location
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Jimmy Redshirt, 
Morphologist


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Marick Passwaters,
Office Manager


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Hannah Jimenez,
Shipping Assistant


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Taylor Otis
Marketing & Promotions


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Madeline Pennington,
Bull Stud Coordinator


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Dorian Green
Production Coordinator


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Daniel Magerkurth
Bull Collection Associate


Sweetwater Location
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Angel Delao, 
Bull Collection Associate


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Pat Hanna,
Executive Assistant


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Marta Herrera,
Customer Service Representative


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Bullnanza Stud Services



Oklahoma Location:
405-377-8037
908 N. Prairie Road • Stillwater, OK 74075

Texas Location:
325-235-BULL
226 CR 118 • Sweetwater, TX 79556

Kolten Thigpen
830-426-1713
Kthigpen@bullnanza.com

Jason Holder
361-876-5886
jholder@bullnanza.com

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