CA contractors

Well drillers in California

Ranked by wells on public record in California. Depth medians hint at the terrain each outfit works — deep-rock specialists read very differently from coastal-plain crews.

Public drilling record

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#	Contractor	Wells on record	Median depth	Median yield
1	MEL MEYER	107,662	148 ft	30 gpm
2	GREGG DRILLING & TESTING INC	15,277	30 ft	2 gpm
3	WEEKS DRILLING AND PUMP CO	14,978	153 ft	20 gpm
4	PETERS DRILLING AND PUMP SERVICE	13,258	275 ft	11 gpm
5	GARY C TANKO WELL DRILLING INC	12,674	225 ft	12 gpm
6	CASCADE DRILLING INC - CALIFORNIA	11,333	40 ft	25 gpm
7	JOHNSON DRILLING CO	11,184	230 ft	50 gpm
8	J & H DRILLING CO INC	9,798	40 ft	1 gpm
9	CASCADE DRILLING L P	9,790	39 ft	2 gpm
10	W D C EXPLORATION & WELLS	7,420	64 ft	22 gpm
11	WEST HAZMAT DRILLING CORP	7,372	35 ft	2 gpm
12	Signal Drilling Company	7,323	159 ft	25 gpm
13	HENNINGS BROS DRILLING CO INC	6,680	180 ft	2588 gpm
14	EXPLORATION GEOSERVICES INC	6,232	27 ft	1.3 gpm
15	A B C LIOVIN DRILLING INC	6,068	45 ft	6.5 gpm
16	BFR ASSOCIATES	5,996	240 ft	15 gpm
17	MASELLIS DRILLING INC	5,682	240 ft	102 gpm
18	CASCADE DRILLING LP	5,516	35 ft	0.5 gpm
19	MAGGIORA BROS DRILLING INC	5,214	220 ft	35 gpm
20	MOSS ROSCOE COMPANY	5,123	30 ft	1600 gpm
21	CALWATER DRILLING COMPANY INC	4,980	235 ft	300 gpm
22	WOODWARD DRILLING COMPANY INC	4,654	34 ft	15 gpm
23	EATON DRILLING CO LLC	4,456	340 ft	1200 gpm
24	T S A DRILLING INC DBA PENECORE DRILLING	4,440	25 ft	3.2 gpm
25	BRADLEY & SONS INC	4,413	320 ft	80 gpm
26	FISCH BROTHERS DRILLING, INC.	4,404	200 ft	20 gpm
27	BC2 ENVIRONMENTAL CORP	4,125	45 ft	33 gpm
28	GREGG DRILLING LLC	3,798	40 ft	2 gpm
29	S A ANDRESEN ALL TERRAIN EXPLORATION	3,726	35 ft	400 gpm
30	QUALITY WELL DRILLERS INC	3,342	240 ft	30 gpm
31	BAYLAND DRILLERS	3,342	30 ft	25 gpm
32	CANEPA AND SONS INC	3,323	420 ft	25 gpm
33	BILL BELKNAP	3,234	138 ft	1215 gpm
34	BEKS ACQUISITION INC	3,160	50 ft	67.5 gpm
35	LAYNE CHRISTENSEN COMPANY	3,091	400 ft	1315 gpm
36	FAIN DRILLING & PUMP CO INC	2,941	400 ft	35 gpm
37	ARTHUR & ORUM WELL DRILLING INC	2,901	362 ft	90 gpm
38	CLEAR HEART DRILLING INC	2,867	24 ft	6 gpm
39	BEYMER WELL SERVICE	2,842	160 ft	60 gpm
40	TRIANGLE WELL DRILLING	2,799	250 ft	10 gpm
41	VACA DRILLING CO /DEL CREW JR	2,714	200 ft	—
42	BC2 ENVIRONMENTAL LLC	2,688	50 ft	40 gpm
43	BRISKI WELL DRILLING CO	2,681	303 ft	20 gpm
44	NATIONAL E W P INC	2,672	40 ft	5 gpm
45	LES PETERSEN DRILLING & PUMP INC	2,663	255 ft	50 gpm
46	FARWEST CORROSION CONTROL COMPANY	2,646	350 ft	55 gpm
47	WALT BANNON DRILLING INC	2,470	425 ft	8 gpm
48	PITCHER DRILLING CO	2,421	76 ft	1 gpm
49	TEZAK PUMP CO INC	2,410	143 ft	300 gpm
50	TANKO BROS INC	2,401	300 ft	20 gpm
51	MARTIN PUMP & SUPPLY INC	2,330	160 ft	0 gpm
52	MYERS REVERSE, INC.	2,325	340 ft	400 gpm
53	STROMING MACHINERY	2,315	200 ft	8 gpm
54	GRABOW WELL DRILLING COMPANY	2,287	420 ft	2300 gpm
55	ANTHONY J PRIETO	2,240	244 ft	500 gpm
56	STEHLY BROTHERS DRILLING INC	2,239	760 ft	40 gpm
57	L O LYNCH QUALITY WELLS & PUMPS INC	2,117	500 ft	20 gpm
58	FILIPPONI-THOMPSON DRILLING INC	2,105	440 ft	70 gpm
59	MYERS BROTHERS WELL DRILLING INC	2,089	500 ft	1387.5 gpm
60	AUFDENKAMP DRILLING INC	2,068	143 ft	12 gpm
61	STRICKLAND ENTERPRISES INC	2,051	310 ft	100 gpm
62	CONSOLIDATED TESTING LABORATORIES INC	2,034	225 ft	35 gpm
63	ZIM INDUSTRIES INC DBA BAKERSFIELD WELL & PUMP CO	2,018	800 ft	2000 gpm
64	H-F DRILLING, INC.	2,011	45 ft	8 gpm
65	Beylik Drilling & Pump Service	2,002	235 ft	1500 gpm
66	HALL THOMAS A	1,998	160 ft	200 gpm
67	IRWIN WELL DRILLING	1,954	175 ft	30 gpm
68	SPECTRUM EXPLORATION INC	1,911	33 ft	60 gpm
69	TESTAMERICA DRILLING CORP	1,883	40 ft	8 gpm
70	GUARDINO WELL DRILLING INC	1,874	294 ft	35 gpm
71	SCOTT XXX PC EXPLORATION INC	1,867	56 ft	15 gpm
72	TANKO WELL DRILLING	1,857	300 ft	30 gpm
73	HOWARD PUMP INC A CALIFORNIA CORPORATION	1,775	250 ft	100 gpm
74	FRONK'S MOUNTAIN DRILLING	1,734	276 ft	6 gpm
75	HUCKFELDT WELL DRILLING INC	1,706	400 ft	60 gpm
76	EARTH FLOW DRILLING COMPANY	1,661	280 ft	15 gpm
77	KVILHAUG DRILLING & PUMP INC	1,660	29 ft	20 gpm
78	IVAN D ALEXANDER WATER WELL DRILLING	1,565	290 ft	15 gpm
79	AMERICAN CONSTRUCTION AND SUPPLY INC	1,563	175 ft	4 gpm
80	ENVIRONMENTAL CONTROL ASSOCIATES	1,518	21 ft	1 gpm
81	ISLAND DRILLING	1,517	35 ft	0.25 gpm
82	ALL WELL ABANDONMENT	1,499	40 ft	7 gpm
83	ROBERT DAWSON DRILLING & PUMPS	1,475	350 ft	15 gpm
84	FISCH BROS DRILLING	1,474	260 ft	20 gpm
85	KELLEY PUMP & DRILLING	1,471	110 ft	6 gpm
86	DUNN JACK INC	1,453	165 ft	10 gpm
87	WELLCO DRILLING INC	1,428	603 ft	22 gpm
88	AMERICAN TECHNOLOGICAL DRILLING SERVICE INC	1,420	400 ft	10 gpm
89	Floyd V Wells	1,409	378 ft	155 gpm
90	MILLER DRILLING CO	1,363	320 ft	50 gpm
91	SULLIVAN DRILLING INC	1,354	375 ft	150 gpm
92	MC DOUGALL'S WELL DRILLING INC	1,340	265 ft	40 gpm
93	ARROW WELL DRILLING	1,314	400 ft	18 gpm
94	VIRONEX, INC	1,304	20 ft	0 gpm
95	Rex Anderson Corp	1,295	281 ft	20 gpm
96	D HEDMAN & CO	1,292	141 ft	40 gpm
97	ROTTMAN DRILLING CO	1,292	480 ft	500 gpm
98	HUNT DRILLING COMPANY INC	1,292	300 ft	23 gpm
99	BLAKE HENNINGS	1,268	185 ft	1 gpm
100	S/G TESTING LABORATORIES INC	1,263	32 ft	7.5 gpm

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