EXHIBIT 21.1

OIL STATES INTERNATIONAL, INC.

SUBSIDIARIES

SUBSIDIARY	STATE/COUNTRY
GEODynamics, Inc.	Delaware
GEODynamics (U.K.) Limited	United Kingdom
Oil States Energy Services (Canada) Inc.	Alberta, Canada
Oil States Energy Services Holding, Inc.	Delaware
Oil States Energy Services L.L.C.	Delaware
OIS Cyprus Limited	Cyprus
Oil States Industries, Inc.	Delaware
Oil States Industries (Asia) Pte Ltd.	Singapore
Oil States Industries do Brasil - Instalacoes Maritimas Ltda	Brazil
Oil States Industries 1 B.V.	Netherlands
Oil States Industries Netherlands, C.V.	Netherlands
Oil States Industries (India) Private Limited	India
Oil States Industries Singapore Holdco B.V.	Netherlands
Oil States Industries US, Inc.	Delaware
Oil States Industries (UK) Limited	United Kingdom
Oil States Management Inc.	Delaware
Oil States Industries (Thailand) Ltd.	Thailand
Oil States Skagit SMATCO L.L.C.	Delaware
OSES International, LLC	Delaware
Tempress Technologies, Inc.	Washington