Mansfield's Gas Equipment Systems team has more than thirteen years of experience providing products and services for customers spanning the government, transit, industrial, and school transportation sectors. Our innovative solutions and services will continue to solve the infrastructure challenges that customers face in adopting CNG systems.
When pairing our experience and service with Mansfield's unmatched national network of fuel supply, the resulting solution allows customers to easily consider CNG as a realistic option to meet their fueling needs at any location across the country.
20 psi gas inlet pressure
3 Ingersoll_Rand Compressor Package
120 Horse Power
174 SCFM
Produces 668 GGE per day
290 GGE gross storage
50 psi gas inlet pressure
2 BRC compressors
250 Horse Power
340 SCFM
Produces 1313 GGE per day
20 psi inlet pressure
2 Ingersoll Rand compressors
80 Horse Power
116 SCFM
Produces 445 GGE per day

GESI has new work near its Southern California base. Contracts have been awarded for private-access CNG fueling stations for; Azusa USD, City of South Pasadena and City of Cathedral City.Read More

Mansfield Oil Company announced today that it has acquired California-based Gas Equipment Systems, Inc. (GESI).GESI was founded by President & CEO Larry Ozier in 1998 and has supplied, constructed and maintained more than 150 compressed natural gas fueling stations in its thirteen year history.Read More

