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

Universal Rig Service LLC (Delaware, U.S.A.)-100% direct subsidiary.
 
3

Parker North America Operations, LLC (Nevada, U.S.A.)-100% direct subsidiary.
 
4

Parker Drilling International Holding Company, LLC (Delaware, U.S.A.)-100% direct subsidiary.
 
5

Parker Drilling Company International Limited (Nevada, U.S.A.)-100% indirect subsidiary -Parker Drilling Eurasia, Inc. (100%).
 
6

Parker Drilling Company Eastern Hemisphere, Ltd. Co. (Oklahoma, U.S.A.)-100% indirect subsidiary -Parker Drilling Eurasia, Inc. (100%).
 
7

Parker Drilling Company Kuwait Limited (Bahamas)-100% indirect subsidiary -PD Selective Holdings C.V. (100%).
 
8

Parker Drilling Company of Sakhalin (Russia)-100% indirect subsidiary -Parker Drilling Netherlands B.V. (100%).
 
9

Parker Drilling Management Services, Ltd. (Nevada, U.S.A.)-100% indirect subsidiary -Parker North America Operations, LLC (100%).
 
10

Quail Tools, L.P. (Oklahoma, U.S.A.)-100% indirect subsidiary -Parker Tools, LLC (99.0%), Quail USA, LLC (1.0%).
 
11

Parker Drilling (Kazakstan), LLC (Delaware, U.S.A.)-100% indirect subsidiary -PD Dutch Holdings C.V. (100%).
 
12

Parker Drilling Offshore International, Inc. (Cayman Islands)-100% indirect subsidiary -Parker Drilling Offshore Company, LLC (100%).
 
13

Parker Drilling Offshore USA, L.L.C. (Oklahoma, U.S.A.)-100% indirect subsidiary -Parker Drilling Offshore Company, LLC (100%).
 
14
Parker Hungary Rig Holdings Limited Liability Company (Hungary)-100% indirect subsidiary -Parker Drillsource LLC (100%).
 
15
Parker Drilling Overseas B.V. (Netherlands)-100% indirect subsidiary -Parker Drilling Netherlands B.V. (100%).
 
16
Parker Drilling Netherlands B.V. (Netherlands)-100% indirect subsidiary -PD Selective Holdings C.V. (100%).
 
17
Parker Drilling Russia B.V. (Netherlands)-100% indirect subsidiary -Parker Drilling Netherlands B.V. (100%).
 
18
Parker Drilling Eurasia, Inc. (Delaware, U.S.A.)-100% indirect subsidiary -Parker Drilling International Holding Company, LLC (64.8%), Parker Drilling Offshore Company, LLC (35.2%).
 
19
Parker Central Europe Rig Holdings LLC (Hungary)-100% indirect subsidiary -Parker Drilling (Kazakstan), LLC (100%).
 
20
Parker Drilling Arctic Operating, LLC (Delaware, U.S.A.)-100% indirect subsidiary -Parker North America Operations, LLC (100%).
 
21
Primorsky Drill Rig Services B.V. (Netherlands)-100% indirect subsidiary -Parker Drilling Netherlands B.V. (100%).
 
22
Parker Drilling Canada Company (Nova Scotia, Canada)-100% indirect subsidiary -Parker Technology, Inc. (100%).
 
23
Parker Drilling Global Employment Company (Management Office), Ltd. (U.A.E.)-100% indirect subsidiary -Parker Drilling Netherlands B.V. (100%).
 
24
International Tubular Services Limited (Scotland, U.K.)-100% indirect subsidiary -PD ITS Holdings C.V. (100%).
 
25
ITS Netherlands B.V. (Netherlands)-100% indirect subsidiary -International Tubular Services Limited (100%).
 
26
ITS Energy Services (Cayman Islands)-100% indirect subsidiary -PD ITS Holdings C.V. (100%).
 
27
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. (00.26%).
 
28
2M-TEK, Inc. (Louisiana, U.S.A.)-100% indirect subsidiary -Parker Drilling Offshore Company, LLC (100%).
 
29
International Tubulars FZE (U.A.E.)-100% indirect subsidiary -International Tubular Services Limited (100%).
 
30
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%).
 
31
ITS Arabia Limited (Saudi Arabia)-100% indirect subsidiary -PD International Holdings C.V. (70%), ITS Egypt Holdings 1, Ltd. (30%).
 
32
Parker Drillsource LLC (Delaware, U.S.A.)-100% indirect subsidiary -PD Selective Holdings C.V. (100%).
 
33
PD International Holdings, C.V. (Netherlands)-100% indirect subsidiary -Parker Drilling Company (00.04%), Parker Intex, LLC (00.04%), Parker Rigsource, LLC (00.04%), Parker Drilling Pacific Rim, Inc. (99.88%).
 
 
 
 
 
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.