HANOVER COMPRESSOR SCHEDULES FIRST QUARTER 2002 EARNINGS CONFERENCE CALL FOR 10:00 A.M. ET, MONDAY, MAY 13

May 9, 2002
HOUSTON, May 9, 2002 – Hanover Compressor Company (NYSE: HC), a leading provider of outsourced natural gas compression services, today announced that the company would release first quarter 2002 earnings before the market opens on Monday, May 13.

The Company will host a conference call at 10 a.m. ET, Monday, May 13, to discuss its financial results. To access the call, participants should dial 719-867-0640 ten minutes before the scheduled start time. For those unable to participate, a replay will be available from 1:30 p.m. ET on Monday, May 13, until midnight on Sunday, May 19. To listen to the replay, please dial 719-457-0820, access code 771837.

About Hanover Compressor
Hanover Compressor Company (www.hanover-co.com) is the global market leader in full service natural gas compression and a leading provider of service, financing, fabrication and equipment for contract natural gas handling applications. Hanover provides this equipment on a rental, contract compression, maintenance and acquisition leaseback basis to natural gas production, processing and transportation companies that are increasingly seeking outsourcing solutions. Founded in 1990 and a public company since 1997, Hanovers customers include premier independent and major producers and distributors throughout the Western Hemisphere.

# # #