Houston's largest annual convention saw its highest attendance ever this month.

Officials with the Offshore Technology Conference say roughly 108,300 people attended this year's event, which wrapped up at NRG Park yesterday. The conference draws energy professionals from around the world to learn about the latest technologies in offshore oil and gas exploration.

The previous attendance record was set in 1982, when just over 108,000 attended the show. Attendance dropped significantly in ensuing years as the oil bust took its toll. Last year's conference topped six figures for the first time since then.

Attendance wasn't the only record. The exhibition floor also covered a record 680,025 square feet.

The OTC is Houston's largest annual convention, giving the region's 3,000 energy companies "home field advantage" in engaging and making deals with customers, said Greg Ortale, CEO of the Greater Houston Convention and Visitors Bureau.

The 2015 OTC is scheduled for May 4-7. More details on the OTC website