Mark Identification

PETROTEL

Serial Number

78236392

Filing Date

Apr 10, 2003

Registration Date

Nov 29, 2005

Trademark by

PETROTEL INC.

Active Trademark

Classification Information

Gas and oil production services; gas and oil refining services

Treatment of Materials

Training in the use of computer software for oil and gas exploration, recovery and production

Education and Entertainment

Consulting and engineering design for others in the fields of oil and gas drilling and recovery, oil and gas exploration, production and transportation; computer software development in the fields of well testing, fracture analysis, reservoir analysis and characterization, equation of state development and fluid phase behavior prediction, and reservoir black oil and compositional simulation

Computer and Scientific