Exhibit 21

Nabors Industries, Ltd. and Subsidiaries
Significant Subsidiaries

Subsidiary

Nabors Drilling International Ltd

Nabors Drilling International II Ltd

Nabors International Management Ltd

Nabors Red Lion Limited

Nabors Blue Shield Ltd.

Nabors Global Holdings II Ltd

Nabors Global Holdings Ltd

Nabors Malta Holding Company Ltd.

Nabors Hungary Kft

Nabors Finance Holdings S.a.r.l.

Nabors International Finance Inc

Nabors Industries Inc.

Yellow Deer Investments Corp

Nabors Holding Company

Nabors Diamond Holdings, Inc

Nabors Drilling USA, LP

Nabors Well Services Co.