EXHIBIT 21
OFFSHORE LOGISTICS, INC.
Subsidiaries of the Registrant at March 31, 1998
Percentage
Place of of Voting
Company Incorporation Stock Owned
------- ------------- -----------
Air Logistics of Alaska, Inc................... Alaska 100%
Air Logistics, L.L.C........................... Louisiana 100%
Aircopter Maintenance International, Inc....... Panama 49%
Airlog International, Inc...................... Panama 100%
Airlog Part Sales, Inc......................... Louisiana 100%
Brilog Leasing Limited......................... Cayman Islands 100%
Bristow Aviation Holdings Limited.............. England 49%
Bristow Helicopters Australia Pty. Ltd......... Australia 49% *
Bristow Helicopters International Limited...... England 49%
Bristow Helicopters Limited.................... England 49%
Bristow Helicopters Nigeria Limited............ Nigeria 40% *
Bristow Helicopter Group Limited............... England 49%
Grasso Corporation............................. Delaware 100%
Guaranty Financial International, N.A.......... Netherlands Antilles 49%
Heliflight Services, Inc....................... Texas 49%
Heliservicio Campeche S.A. de C.V.............. Mexico 49%
Hemisco Helicopters International, Inc........ Panama 49%
Medic Systems International, Inc............... Panama 100%
Medic Systems, Inc............................. Delaware 100%
Offshore Logistics International, Inc.......... Panama 100%
Offshore Logistics Management Services, Inc.... Louisiana 100%
Petroleum Air Services......................... Egypt 25%
* percentage owned by Bristow Helicopters Limited