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| 699 | 3RD GENERATION WELL DRILLING, INC. | P.O. BOX 3893 | | CHINO VALLEY | AZ | 86323-8602 | 928-636-0378 | K-53 | DWAYNE ELDON TISCHLER | A |
| 162 | 4-J DRILLING & PUMP COMPANY L.C. | P.O. BOX 36 | | PIMA | AZ | 85543-0036 | 928-485-9639 | C-53 & A-4 | JOSEPH B. TATUM | A |
| 12 | A TO Z DRILLING & PUMP SERVICE LLC | P.O. BOX 519 | 40 PINEDALE RD | TAYLOR | AZ | 85939-0519 | 928-536-7319 | K-53 | TERRANCE R. MCCRAY SR. | A |
| 691 | ABC PUMP AND WELL DRILLING | PO BOX 2626 | | BENSON | AZ | 85602-2426 | 520-586-2113 | REVOKED | BRIAN C. VAUGHT | A |
| 803 | ACOSTA DRILLING | 2000 N DALLAS AVE | | LAMESA | TX | 79331-1221 | 806-872-5960 | NONE | VICTOR M ACOSTA | A |
| 521 | ACTION WELL DRILLING | 19211 S. SONOITA HIGHWAY | | VAIL | AZ | 85641-9150 | 520-746-9155 | C-53 | CHARLES R. MCCAIN | A |
| 671 | ADT DRILLING dba Advanced Drilling Technology, LLC | 28150 N ALMA SCHOOL PKWY | #103-440 | SCOTTSDALE | AZ | 85262 | 480-518-2686 | A-04, C-53 | SEE COMMENTS | A |
| 108 | AERO DRILLING AND PUMPS, INC. | P.O. BOX 499 | | PAYSON | AZ | 85547-0499 | 928-474-2376 | C-53 & A-4 | CHRIS MILLER | A |
| 808 | ALAN LANG | PO BOX 27558 | | SALT LAKE CITY | UT | 84127-0558 | 801-554-2419 | NONE | ALAN LANG | A |
| 13 | ALLEN PUMP COMPANY, INC. | 4206 W. HIGHWAY 70 | PO BOX A | THATCHER | AZ | 85552-0616 | 928-428-3273 | K-53 | STEVE ALLEN | A |
| 14 | ALLEN'S WELL SERVICE LLC | 5509 W. GLEESON ROAD | | ELFRIDA | AZ | 85610-9050 | 520-642-3775 | C-53, L-53 | SEE COMMENTS | A |
| 749 | ALLIANCE DRILLING | | | GOLDEN VALLEY | AZ | | | SUSPENDED | WARREN A. TOSO | A |
| 784 | ALTAR DRILLING, INC. | P.O. BOX 42831 | | TUCSON | AZ | 85733-2831 | 520-289-4741 | A-4 | DANIEL LAJACK | A |
| 390 | AMERICAN JOJOBA CORPORATION | 16514 WEST VICTORY ROAD | | GOODYEAR | AZ | 85338-9732 | 623-932-1245 | NONE | PAUL S. GARBER | A |
| 770 | ANZALONE PUMP, INC. | 3632 N 250 E | | CEDAR CITY | UT | 84721 | 435-590-1303 | K-53 | MICHAEL T. ANZALONE | A |
| 683 | ARIZOLA DRILLING, L.L.C. | 1124 E JIMMIE KEER BLVD | | CASA GRANDE | AZ | 85122 | 520-876-9568 | K-53 | VICTOR ENCINAS LIRA | A |
| 360 | ARIZONA BEEMAN DRILLING dba Morex Investments LLC | 15563 E. U. S. HWY 60 | | GOLD CANYON | AZ | 85118 | 480-983-2542 | A-4, C-53, "A" | SEE COMMENTS | A |
| 813 | ARIZONA DUAL ROTARY, L. L. C. | PO BOX 26120 | | YUMA | AZ | 85367 | 623-670-0430 | K-53 | ROBERT FIRASEK | A |
| 767 | ARIZONA MONSOON H2O, INC. | 28150 N ALMA SCHL PKWY 103-176 | | SCOTTSDALE | AZ | 85262 | 480-471-2323 | K-53 | MARTIN J. CRAVEN JR. | A |
| 619 | ARIZONA PRESTON DRILLING | 2833 N. 79TH STREET | | MESA | AZ | 85207-9755 | 480-984-4747 | C-53 & A-4 | TREY PRESTON | A |
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