Empresas O&G: Parex Resources Colombia Ltd

Sla Col S.A.S.

Sertecpet de Colombia S.A.

SLB

Wellbore Integrity Solutions Colombia S.A.S.

QMAX Solutions Colombia

Puffer Colombia

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

Petroworks S.A.S.

Pemarsa Oilfield Services S.A.

Innergy S.A.S.