| 162 | 4-J DRILLING & PUMP COMPANY, LC | P.O. BOX 36 | | PIMA | AZ | 85543-0036 | 928-485-9639 | C-53 & A-4 | JOE TATUM | A |
| 12 | A TO Z DRILLING & PUMP SERVICE, LLC | P.O. BOX 519 | | TAYLOR | AZ | 85939-0519 | 928-536-7319 | K-53 & A-4 | TERRANCE R. MCCRAY SR. | 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 | HARVEY ALLEN | A |
| 822 | ALPINE REMEDIATION, INC. | 14252 W. 44TH AVE, UNIT G | | GOLDEN | CO | 80403-1800 | 303-277-0857 | A-4 | MATTHEW W. STEERE | A |
| 784 | ALTAR DRILLING, INC. | 2112 N. DRAGOON, UNIT #16 | | TUCSON | AZ | 85745 | 520-289-4741 | A-4 | DANIEL LAJACK | A |
| 634 | AMERICAN CONSTRUCTION AND SUPPLY, INC. dba ACS of CA | P.O. BOX 410 | | CORTE MADERA | CA | 94976-0410 | 415-927-2024 | "A" | RUDY ARANA | A |
| 390 | AMERICAN JOJOBA CORPORATION | 16514 WEST VICTORY ROAD | | GOODYEAR | AZ | 85338-9732 | 623-932-1245 | NONE | PAUL S. GARBER | A |
| 770 | ANZALONE PUMPS, INC. | 3632 N. 250 E. | | ENOCH | UT | 84721 | 435-590-1303 | K-53 | MICHAEL T. ANZALONE | A |
| 683 | ARIZOLA DRILLING, LLC | 407 E. PHOENIX AVE. | | ELOY | AZ | 85131 | 602-723-9142 | NONE | 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 | SEE COMMENTS | 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, LLC | 8957 E. PALM LANE | | MESA | AZ | 85207-9118 | 480-986-6285 | C-53 & A-4 | TREY PRESTON | A |
| 754 | AXIS DRILLING, INC. | 204 COUNTRYSIDE LANE | | BELGRADE | MT | 59714 | 406-570-3030 | NONE | LYLE D. BALLENGER | A |
| 621 | AZCA DRILLING & PUMP, INC. | P.O. BOX 570 | | EHRENBERG | AZ | 85334-0570 | 928-923-9118 | C-53 & "A" | LARRY J. SIDDALL | A |
| 742 | B & M WELL DRILLERS, INC. | 10418 SHIRE COUNTRY | | SAN ANTONIO | TX | 78254 | 601-669-2908 | SUSPENDED | SEE COMMENTS | A |
| 629 | B AND B FABRICATIONS | P.O. BOX 2873 | | ST. JOHNS | AZ | 85936-2873 | 928-242-1730 | C-53 | BRAD PETERSON | A |
| 25 | B-J DRILLING COMPANY, INC. | P.O. BOX 815 | | BENSON | AZ | 85602-0815 | 520-586-3282 | C-53 & A-4 | ROBERT L. JACKSON | A |