Williams International history

The company opened its doors in 1955 and has expanded in terms of development, manufacturing and support for its line of small-jet turbine engines covering a thrust range from 1,000 to 3,600 pounds.

Williams merged with MAPCO, whose assets happened to include a pipeline that Williams built in 1960, during the heyday of its construction business.

As a conglomerate with businesses ranging from fertilizer and steel to retail stores and commercial real estate development, Williams turned its full focus back to energy and pipelines.1983.

The purchase of Northwest Energy Company was the beginning of the company’s nationwide system of interstate natural gas pipelines.1985.

In 1992, NASA initiated its Advanced General Aviation Transport Experiments (AGATE) program to partner with manufacturers and help develop technologies that would revitalize the sagging general aviation industry.

The WilTel venture began, playing a foundational role in today’s digital world by using retired-from-service pipelines as conduit for fragile fiber-optic cable.1995.

In 1996, Williams joined AGATE's General Aviation Propulsion program to develop a fuel-efficient turbofan engine that would be even smaller than the FJ44.

The acquisition of Transco Energy Company expanded Williams’ natural gas transportation system to the East Coast and established the company as one of the nation’s largest-volume transporters of natural gas, now delivering about half of the natural gas consumed in New York City.1998.

The company narrowed its focus back to energy, exited the telecommunications business, and acquired Barrett Resources, adding significant natural gas reserves, primarily in the western United States.2003.

James M. StewartFlight Research Test PilotAfter his first flight in the Excel-Jet SportJet 25 May 2006

Doug RozendaalTwin & Turbine, May 2008

The results of the company’s financial strengthening actions resulted in its return to investment-grade credit.2009.

When the 400XP went out of production in 2010, it was the last light jet to be powered by JT15D engines.

BCA’s May 2012 Purchase Planning Handbook indicates that both the Citation Mustang and King Air 200GT have slightly better fuel efficiency on most trips.

Williams began investing to grow its business in the Marcellus producing area of the United States Northeast. It also continued to invest in expanding its Transco interstate natural gas pipeline system – the nation’s largest, and fastest-growing – to create access to the “best markets” to the north and south of the Marcellus and Utica supply areas.2014.