1 |
Petrofina Exploration Australia Societe Annonyme
|
Australia
|
Melbourne
|
476 St Kilda Rd
|
N/A
|
Victoria
|
3000
|
N/A
|
Oil/gas well drilling
|
N/A
|
446729223600
|
22
|
|
0
|
010418185
|
452432388
|
2 |
PT. Pertamina (persero)
|
Indonesia
|
Kota Administrasi Jakarta Pusa
|
1st - 21st Floor Pertamina Building
|
Jl. Medan Merdeka Timur No. 1a
|
Dki Jakarta
|
10110
|
pertamina.com
|
Oil/gas well drilling
|
1957
|
84888000000
|
2163
|
|
343
|
AHU-AH.01.09-010
|
433583990
|
3 |
SPA Sonatrach
|
Algeria
|
Hydra
|
Djenane el Malik
|
N/A
|
Wilaya D Alger
|
16035
|
N/A
|
Oil/gas well drilling
|
1963
|
64269526000
|
0
|
Corporation
|
133
|
00B0013767
|
390515921
|
4 |
PT. Kilang Pertamina Internasional
|
Indonesia
|
Kota Administrasi Jakarta Pusa
|
8th Floor Grha Pertamina
|
Jl. Medan Merdeka Timur No. 10-13
|
Dki Jakarta
|
10110
|
pertamina-ptc.com
|
Oil/gas well drilling
|
2017
|
36946560000
|
6000
|
Corporation
|
343
|
AHU-AH.01.09-007
|
395665161
|
5 |
Schlumberger LIMITED
|
USA
|
Houston
|
5599 San Felipe St Fl 17
|
N/A
|
Texas
|
770562790
|
slb.com
|
Oil/gas well drilling
|
1926
|
33477000000
|
111000
|
Corporation
|
121
|
52-0684746
|
186494851
|
6 |
Halliburton Guyana, INC.
|
Guyana
|
Georgetown
|
103 Carmichael Street
|
North Cummingsburg
|
N/A
|
N/A
|
N/A
|
Oil/gas well drilling
|
2015
|
6605717184
|
57024
|
Corporation
|
0
|
8150
|
459152621
|
7 |
Arc Resources LTD
|
Canada
|
Calgary
|
1200 308-4 Ave Sw
|
N/A
|
Alberta
|
T2P 0H7
|
N/A
|
Oil/gas well drilling
|
1996
|
6432941340
|
464
|
Corporation
|
22
|
N/A
|
256377549
|
8 |
Sinopec Oilfield Service Shengli CORPORATION
|
China
|
Dongying
|
No.125, Jinan Rd., Dongying District
|
N/A
|
Shandong
|
257051
|
N/A
|
Oil/gas well drilling
|
2012
|
5290956835
|
20285
|
Corporation
|
226
|
370500000001512
|
341070595
|
9 |
Antero Resources CORPORATION
|
USA
|
Denver
|
1615 Wynkoop St
|
N/A
|
Colorado
|
802021106
|
anteroresources.com
|
Oil/gas well drilling
|
2002
|
4600000000
|
522
|
Corporation
|
11
|
4520810
|
465424550
|
10 |
Nabors Industries, INC.
|
USA
|
Houston
|
515 W Greens Rd Ste 1200
|
N/A
|
Harris
|
77067
|
nabors.com
|
Oil/gas well drilling
|
1978
|
4585433359
|
16847
|
Corporation
|
191
|
853632
|
215132200
|
11 |
China Oilfield Services LIMITED (unofficial Translation)
|
Hong Kong
|
Central District
|
65/f Bank of China Twr
|
1 Garden Rd
|
Hong Kong
|
N/A
|
cosl.com.cn
|
Oil/gas well drilling
|
2002
|
4562533485
|
44
|
Corporation
|
3269
|
F-12200
|
397834789
|
12 |
Easternwell Group Assets PTY LTD
|
Australia
|
Groper Creek
|
8-10 Russell Street
|
N/A
|
Queensland
|
4350
|
easternwell.com.au
|
Oil/gas well drilling
|
2007
|
4042880500
|
15639
|
Corporation
|
124
|
126227932
|
452683557
|
13 |
Easternwell Group Operations PTY LTD
|
Australia
|
Groper Creek
|
8-10 Russell Street
|
N/A
|
Queensland
|
4350
|
N/A
|
Oil/gas well drilling
|
2007
|
4042880500
|
15639
|
Corporation
|
124
|
128179313
|
452740255
|
14 |
Pdc Energy, INC.
|
USA
|
Denver
|
1099 18th St Ste 1500
|
N/A
|
Denver
|
80202
|
N/A
|
Oil/gas well drilling
|
2023
|
3845733000
|
520
|
Corporation
|
1580
|
C400-1955
|
207128603
|
15 |
Civitas Resources, INC.
|
USA
|
Denver
|
555 17th St Ste 3700
|
N/A
|
Denver
|
80202
|
N/A
|
Oil/gas well drilling
|
2022
|
3791398000
|
516
|
Corporation
|
41
|
4907083
|
520760529
|
16 |
Helmerich & Payne, INC.
|
USA
|
Tulsa
|
222 N Detroit Ave
|
N/A
|
Tulsa
|
74103
|
helmerichpayne.com
|
Oil/gas well drilling
|
1920
|
2872421000
|
7100
|
Corporation
|
48
|
0388801
|
188191240
|
17 |
China National Logging CORPORATION
|
China
|
Xi'An
|
No.50 Zhangba 5th Road, Jinye 2nd Road, High-tech Development Di
|
N/A
|
Shaanxi
|
710077
|
N/A
|
Oil/gas well drilling
|
2002
|
2869141000
|
11000
|
Corporation
|
29459
|
610131100005419
|
333793434
|
18 |
Adnoc Drilling Company P.J.S.C.
|
United Arab Emirates
|
Abu Dhabi
|
Skec 2, Zone 1 - E-17
|
N/A
|
Abu Dhabi
|
N/A
|
ndc.ae
|
Oil/gas well drilling
|
2019
|
2673251000
|
200
|
Joint venture
|
2
|
CN-2688881
|
380728445
|
19 |
Patterson-Uti Energy, INC.
|
USA
|
Houston
|
10713 W Sam Houston Pkwy N Ste 800
|
N/A
|
Texas
|
770643583
|
patenergy.com
|
Oil/gas well drilling
|
1978
|
2647592000
|
13317
|
Corporation
|
248
|
2355146
|
219249321
|
20 |
Midis Energy Services LIMITED
|
Nigeria
|
Port Harcourt
|
190 George Sekibo Road
|
Off Odili Rd, Trans Amadi Industrial Area
|
Rivers
|
N/A
|
N/A
|
Oil/gas well drilling
|
2015
|
2131906524
|
250
|
Corporation
|
0
|
RC - 639040
|
472749324
|
21 |
Nabors Drilling Technologies USA, INC.
|
USA
|
Houston
|
515 W Greens Rd
|
N/A
|
Harris
|
77067
|
nabors.com
|
Oil/gas well drilling
|
1993
|
2112364704
|
1637
|
Corporation
|
191
|
2310921
|
188375010
|
22 |
Clean Harbors Exploration Services LTD
|
Canada
|
Grimshaw
|
5301 57 Ave
|
N/A
|
Alberta
|
T0H 1W0
|
N/A
|
Oil/gas well drilling
|
2005
|
2018037000
|
3000
|
Corporation
|
0
|
N/A
|
245802760
|
23 |
Transocean INC.
|
USA
|
Houston
|
1414 Enclave Pkwy
|
N/A
|
Texas
|
770772023
|
deepwater.com
|
Oil/gas well drilling
|
1953
|
1765784681
|
21100
|
Corporation
|
137
|
N/A
|
188382041
|
24 |
Aera Energy Services Company
|
USA
|
Bakersfield
|
10000 Ming Ave
|
N/A
|
California
|
933111301
|
aeraenergy.com
|
Oil/gas well drilling
|
1994
|
1732766004
|
1658
|
Corporation
|
6088
|
2748145
|
219881949
|
25 |
PT. Pertamina Ep Cepu
|
Indonesia
|
Kota Administrasi Jakarta Sela
|
Patra Jasa Office Tower 5th-8th & 13th-14th Floor
|
Jl. Gatot Subroto Kav. 32-34
|
Dki Jakarta
|
12950
|
pertamina.com
|
Oil/gas well drilling
|
2005
|
1643774000
|
160
|
Corporation
|
343
|
AHU-AH.01.03-044
|
432383147
|
26 |
Oil And Gas Development Company LIMITED
|
Pakistan
|
Islamabad
|
Plot No. 3, F-6/g-6
|
Jinnah Avenue
|
Islamabad Capital Territory
|
45600
|
N/A
|
Oil/gas well drilling
|
1997
|
1449647002
|
11627
|
|
548
|
0038403
|
390953870
|
27 |
Ensco International Incorporated
|
USA
|
Houston
|
5847 San Felipe St Ste 3300
|
N/A
|
Texas
|
770573000
|
valaris.com
|
Oil/gas well drilling
|
1987
|
1413160404
|
3947
|
Corporation
|
5
|
N/A
|
219567402
|
28 |
Frontera Energy CORPORATION
|
Canada
|
Calgary
|
2000-222 3 Ave Sw
|
N/A
|
Alberta
|
T2P 0B4
|
N/A
|
Oil/gas well drilling
|
2014
|
1365467000
|
1376
|
Corporation
|
18
|
N/A
|
256515295
|
29 |
Ensign Drilling INC
|
Canada
|
Calgary
|
400 5 Ave Sw Suite 1000
|
N/A
|
Alberta
|
T2P 0L6
|
N/A
|
Oil/gas well drilling
|
1980
|
1364927500
|
2500
|
Corporation
|
46
|
N/A
|
256015514
|
30 |
Helmerich & Payne International Drilling CO INC
|
USA
|
Tulsa
|
222 N Detroit Ave
|
N/A
|
Tulsa
|
74120
|
helmerichpayne.com
|
Oil/gas well drilling
|
1967
|
1350449432
|
6574
|
Corporation
|
48
|
0662504
|
201637217
|
31 |
PT. Medco Energi Internasional TBK
|
Indonesia
|
Kebayoran Baru
|
The Energy Building 53rd Floor
|
Jl. Jenderal Sudirman Kav. 52-53, Scbd Lot 11a
|
Special Capital Region of Jakarta
|
12190
|
medcoenergi.com
|
Oil/gas well drilling
|
1980
|
1323242000
|
3360
|
Corporation
|
103
|
AHU-0051458.AH.0
|
433506632
|
32 |
Rn-Burenie, OOO
|
Russian Federation
|
Moscow
|
D. 15 Str. 31 Etazh 4 Kom. 415, Ul. Malaya Kaluzhskaya
|
N/A
|
N/A
|
119071
|
N/A
|
Oil/gas well drilling
|
2006
|
1291317042
|
0
|
Corporation
|
355
|
94475850
|
353409828
|
33 |
Transocean Offshore Deepwater Drilling INC.
|
USA
|
Houston
|
1414 Enclave Pkwy
|
N/A
|
Texas
|
770772023
|
deepwater.com
|
Oil/gas well drilling
|
2010
|
1264168888
|
891
|
Corporation
|
137
|
3036138
|
456653355
|
34 |
Bke, OOO
|
Russian Federation
|
Moscow
|
D. 40 K. 2, Ul. Narodnogo Opolcheniya
|
N/A
|
N/A
|
123298
|
N/A
|
Oil/gas well drilling
|
1995
|
1260644659
|
0
|
Corporation
|
13
|
39355854
|
353408260
|
35 |
Baker Hughes Oilfield Operations LLC
|
USA
|
Houston
|
575 N Dairy Ashford Rd
|
N/A
|
Harris
|
77079
|
bakerhughes.com
|
Oil/gas well drilling
|
1992
|
1247693277
|
4923
|
Corporation
|
1325
|
201715210251
|
368977144
|
36 |
Precision Drilling CORPORATION
|
Canada
|
Calgary
|
525 8 Ave Sw Suite 800
|
N/A
|
Alberta
|
T2P 1G1
|
precisiondrilling.com
|
Oil/gas well drilling
|
1985
|
1203920073
|
4337
|
Corporation
|
53
|
N/A
|
245770603
|
37 |
Ensign Energy Services INC
|
Canada
|
Calgary
|
400 5 Ave Sw Suite 1000
|
N/A
|
Alberta
|
T2P 0L6
|
N/A
|
Oil/gas well drilling
|
1989
|
1174242574
|
4772
|
Corporation
|
46
|
N/A
|
255958001
|
38 |
Ranger Oil LLC
|
USA
|
Houston
|
16285 Park Ten Pl Ste 500
|
N/A
|
Harris
|
77084
|
pennvirginia.com
|
Oil/gas well drilling
|
2023
|
1145189000
|
87
|
Corporation
|
69
|
00169714
|
188377702
|
39 |
Chevron Thailand Exploration And Production LIMITED
|
Thailand
|
Chatuchak
|
19 Ratchadaphisek Road
|
N/A
|
Bangkok
|
10900
|
chevronthailand.com
|
Oil/gas well drilling
|
N/A
|
1134501885
|
44
|
|
1578
|
0100536023947
|
395497438
|
40 |
Tecpetrol S.A.
|
Argentina
|
Ciudad de Buenos Aires
|
Ingeniero Carlos María della Paolera 297/99
|
Pisos 16, 19, 20, 21, 22 Y 23
|
N/A
|
C1001ADA
|
N/A
|
Oil/gas well drilling
|
1982
|
1033360150
|
681
|
Corporation
|
441
|
30-59266547-2
|
523089301
|
41 |
Nabors Drilling Canada LIMITED
|
Canada
|
Calgary
|
500 4 Ave Sw Suite 2800
|
N/A
|
Alberta
|
T2P 2V6
|
N/A
|
Oil/gas well drilling
|
1951
|
1022603683
|
1873
|
Corporation
|
13
|
N/A
|
255690087
|
42 |
Agl Gas Storage PTY LTD
|
Australia
|
Sydney
|
L 24 200 George St
|
N/A
|
New South Wales
|
2000
|
agl.com.au
|
Oil/gas well drilling
|
1986
|
1003416857
|
3847
|
Corporation
|
127
|
009203463
|
445997959
|
43 |
Precision Drilling CORPORATION
|
USA
|
Houston
|
10370 Richmond Ave Ste 600
|
N/A
|
Texas
|
770424136
|
precisiondrilling.com
|
Oil/gas well drilling
|
2008
|
941165491
|
6000
|
Corporation
|
53
|
N/A
|
210106244
|
44 |
Ces Energy Solutions CORP
|
Canada
|
Calgary
|
332 6 Ave Sw Suite 1400
|
N/A
|
Alberta
|
T2P 0B2
|
canadianenergyservices.com
|
Oil/gas well drilling
|
2006
|
935255871
|
1993
|
Corporation
|
45
|
N/A
|
255594328
|
45 |
Trinidad Drilling LTD
|
Canada
|
Calgary
|
400 5th Ave Suite 1000
|
N/A
|
Alberta
|
T2P 0L6
|
N/A
|
Oil/gas well drilling
|
1996
|
873007629
|
1599
|
Corporation
|
46
|
N/A
|
256377876
|
46 |
Diamond Offshore Drilling INC
|
USA
|
Houston
|
15415 Katy Fwy Ste 100
|
N/A
|
Texas
|
770941810
|
diamondoffshore.com
|
Oil/gas well drilling
|
1953
|
841278020
|
2140
|
Corporation
|
3
|
2193202
|
367614367
|
47 |
Tri Resources INC.
|
USA
|
Houston
|
811 Louisiana St Ste 2100
|
N/A
|
Texas
|
770021412
|
triresources.com
|
Oil/gas well drilling
|
2005
|
835741919
|
1050
|
Corporation
|
249
|
N/A
|
242514235
|
48 |
Cnpc Chuanqing Drilling Engineering CO., LTD.
|
China
|
Chengdu
|
No.6 Mangchouwan Street, Chenghua District
|
N/A
|
Sichuan
|
610051
|
N/A
|
Oil/gas well drilling
|
2008
|
805706959
|
25484
|
Corporation
|
29459
|
510000619570616
|
333525602
|
49 |
Shengli Oil Field Petroleum Development Center LTD.
|
China
|
Dongying
|
Room 207, Office Building 89, Liaocheng Road, Dongying District
|
N/A
|
Shandong
|
257064
|
N/A
|
Oil/gas well drilling
|
2003
|
805706959
|
3089
|
Corporation
|
39936
|
370500018046557
|
341339635
|
50 |
Kelamayi Engineering Geology CO., LTD.
|
China
|
Karamay
|
No.85, Shengli Road, Kelamayi District
|
N/A
|
Xinjiang
|
834000
|
N/A
|
Oil/gas well drilling
|
1998
|
805706959
|
3089
|
Corporation
|
4
|
650200030000112
|
332023023
|