Parsons sold it's Petro-Chem devision in 2004 to Worley. Worley
then became WorleyParsons.
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The founder of Worley Parsons is Steven Worley. He founded this
business in 1961 in the United States. Worley aquired Parsons E+C
Corporation in 2004. Later that year Worley changed its name to
Worley Parsons.