EXHIBIT 21
SUBSIDIARIES OF THE REGISTRANT
 
The following is a list of significant subsidiaries of the Registrant:
 
1
 Parker Technology, Inc. (Oklahoma, U.S.A.) - 100% direct subsidiary.
 
2
 Parker North America Operations, LLC (Nevada, U.S.A.) - 100% direct subsidiary.
 
3
 Universal Rig Service LLC (Delaware, U.S.A.) - 100% direct subsidiary.
 
4
 Parker Drilling Domestic Holding Company LLC (Delaware, U.S.A.) - 100% direct subsidiary.
 
5
 Parker Drilling Management Services, Ltd. (Nevada, U.S.A.) - 100% indirect subsidiary - Parker North America Operations, LLC (100%).
 
6
 Quail Tools, LLC (Oklahoma, U.S.A.) - 100% indirect subsidiary - PD Holdings Domestic Company S.a.r.l. (99.90%), PD GP Quail, LLC (0.01%).
 
7
 Parker Drilling Company North America, Inc. (Nevada, U.S.A.) - 100% indirect subsidiary - Parker North America Operations, LLC (100%).
 
8
Parker Drilling Offshore USA, L.L.C. (Oklahoma, U.S.A.) - 100% indirect subsidiary - PD Holdings Domestic Company S.a.r.l. (99.90%),PD GP Offshore, LLC (0.01%).
 
9
Parker Drilling Offshore Company, LLC (Nevada, U.S.A.) - 100% indirect subsidiary - Parker North America Operations, LLC (100%).
 
10
Parker Drilling Arctic Operating, LLC (Delaware, U.S.A.) - 100% indirect subsidiary - PD Holdings Domestic Company S.a.r.l. (99.90%), PD GP Arctic, LLC (0.01%).
 
11
2M-TEK, Inc. (Louisiana, U.S.A.) - 100% indirect subsidiary - Parker Drilling Offshore Company, LLC (100%).
 
12
Parker Drilling Company Kuwait Limited (Bahamas) - 100% indirect subsidiary - Parker International Holding Kft. (100%).
 
13
Parker Drilling Company International Limited (Nevada, U.S.A.) - 100% indirect subsidiary - Parker Drilling Eurasia, Inc. (100%).
 
14
Parker Drilling Company of Sakhalin (Russia) - 100% indirect subsidiary - Parker Drilling Netherlands B.V. (100%).
 
15
Parker Drilling (Kazakstan), LLC (Delaware, U.S.A.) - 100% indirect subsidiary - Parker International Holding Kft. (100%).
 
16
Parker Drilling Company of New Guinea, LLC (Delaware, U.S.A.) - 100% indirect subsidiary - Parker International Holding Kft. (100%).
 
17
Parker Drilling de Mexico, S. de R.L. de C.V. (Mexico) - 100% indirect subsidiary - Parker Drilling Company of Mexico, LLC (2%), Parker Drilling Offshore Company, LLC (98%).
 
18
Parker Drilling Offshore International, Inc. (Cayman Islands) - 100% indirect subsidiary - Parker Drilling Offshore Company, LLC (100%).
 
19
Parker Drillsource LLC (Delaware, U.S.A.) - 100% indirect subsidiary - Parker International Holding Kft. (100%).
 
20
PD International Holdings, C.V. (Netherlands) - 100% indirect subsidiary - Parker Rigsource, LLC (0.04%), International Tubular Services Limited (99.96%).
 
21
Parker Drilling Dutch B.V. (Netherlands) - 100% indirect subsidiary - Parker International Holding Kft. (100%).
 
22
PD Selective Holdings C.V. (Netherlands) - 100% indirect subsidiary - Parker 3source, LLC (00.03%),PD Selective, LLC (99.97%).
 
23
Parker Hungary Rig Holdings Limited Liability Company (Hungary) - 100% indirect subsidiary - Parker International Holding Kft. (100%).
 
24
Parker Drilling AME Limited (Cayman Islands) - 100% indirect subsidiary - Parker International Holding Kft. (100%).
 
25
Parker Drilling Overseas B.V. (Netherlands) - 100% indirect subsidiary - Parker Drilling Netherlands B.V. (100%).
 
26
Parker Drilling Netherlands B.V. (Netherlands) - 100% indirect subsidiary - Parker International Holding Kft. (100%).
 
27
Parker Drilling International B.V. (Netherlands) - 100% indirect subsidiary - Parker Drilling Netherlands B.V. (100%).
 
28
Parker Drilling Russia B.V. (Netherlands) - 100% indirect subsidiary - Parker Drilling Netherlands B.V. (100%).
 
29
Parker Drilling Eurasia, Inc. (Delaware, U.S.A.) - 100% indirect subsidiary - Parker North America Operations, LLC (100%).
 
30
Parker Drilling Pacific Rim, Inc. (Delaware, U.S.A.) - 100% indirect subsidiary - Parker North America Operations, LLC (100%).
 
31
Parker Central Europe Rig Holdings LLC (Hungary) - 100% indirect subsidiary - Parker International Holding Kft. (100%).
 
32
Primorsky Drill Rig Services B.V. (Netherlands) - 100% indirect subsidiary - Parker Drilling Netherlands B.V. (100%).
 




33
Parker Drilling Canada Company (Nova Scotia, Canada) - 100% indirect subsidiary - Parker International Holding, Kft. (100%).
 
34
PD Holdings Domestic Company S.a.r.l. (Luxembourg) - 100% indirect subsidiary - Parker North America Operations, LLC (100%).
 
35
Parker International Holding, Kft. (Hungary) - 100% indirect subsidiary - PD ITS, LLC (33.33%), PD Dutch, LLC (33.33%), PD Selective Holdings, C.V. (33.33%).
 
36
PD ITS, LLC (Delaware, U.S.A.) - 100% indirect subsidiary - Parker Drilling Pacific Rim, Inc. (100%).
 
37
Parker Dalnevostockny Drilling Services, LLC (Russia)- 100% indirect subsidiary - Parker Drilling Netherlands B.V. (49%), Parker Drilling Company of Sakhalin (51%).
 
38
International Tubular Services Limited (Scotland, U.K.) - 100% indirect subsidiary - Parker International Holding, Kft. (100%).
 
39
ITS Netherlands B.V. (Netherlands) - 100% indirect subsidiary - International Tubular Services Limited (100%).
 
40
ITS Energy Services Limited (Trinidad) - 100% indirect subsidiary - International Tubular Services Limited (100%).
 
41
ITS Arabia Limited (Saudi Arabia) - 100% indirect subsidiary - PD International Holdings C.V. (70%),ITS Egypt Holdings 1, Ltd. (30%).
 
42
ITS Energy Services (Cayman Islands) - 100% indirect subsidiary - Parker International Holding, Kft. (100%).
 
43
International Tubular Services de Mexico, S. de R.I. de C.V. (Mexico) - 100% indirect subsidiary - International Tubular Services Limited (99.74%), ITS Egypt Holdings 2, Ltd. (0.26%).
 
44
ITS Energy Services (Asia Pacific) PTE LTD (Singapore) - 100% indirect subsidiary - ITS Energy Services PTE Ltd (100%).
 
45
International Tubular Services Middle East, WLL (U.A.E.) - 100% indirect subsidiary - 3rd Party Saleem Abdulla Salem Saeed Al Shamnisi (51%),International Tubulars FZE (49%).
 
46
Technology Specialists for Tubes Manufacturing & General Services, LLC (Iraq) - 100% indirect subsidiary - International Tubulars FZE (100%).
 
47
International Tubulars FZE (U.A.E.) - 100% indirect subsidiary - International Tubular Services Limited (100%).
 
 
 
 
 
Note: Certain subsidiaries have been omitted from the list since they would not, even if considered in the aggregate, constitute a significant subsidiary. All subsidiaries are included in the consolidated financial statements.