Empresas O&G: Canacol Energy Colombia S.A.

QMAX Solutions Colombia

PATTERSON - UTI INTERNATIONAL (COLOMBIA) LTDA S.DE R.L. SUCURSAL COLOMBIA

Nabors Drilling International Limited

Innergy S.A.S.

Guacamaya Energy Services S.A.S.

Grupo Sierra Alta S.A.S.

Galqui S.A.S.

American Tubular Services S.A.S.