Dorf Ketal Energy Services, LLC

(713) 343-2340
1575 Sawdust Rd.
Suite 330
The Woodlands, TX 77830

Dorf Ketal Energy Services, Ltd.

Suite 1500, 140 - 10 Avenue SE
Calgary, Alberta, Canada
T2G 0R1

Dorf Ketal Chemicals, LLC

(713) 343-2377
11490 Westheimer Rd
Suite 300
Houston, TX 77077
Please send your queries to OGProductionNA@dorfketal.com