Company to Provide Engineering, Procurement and Construction Services in Support of Holly's Interconnecting Piping and Diesel Hydrotreater Revamp Projects MCLEAN, Va., Sept 08, 2010 /PRNewswire via COMTEX/ -- Science Applications International Corporation (SAIC) (NYSE: SAI) today announced its wholly-owned subsidiary, Benham Constructors, LLC has been awarded two new contracts by a subsidiary of Holly Corporation (NYSE: HOC), an independent petroleum refiner and marketer, to provide engineering, procurement and construction services. The contracts have a combined value of approximately $27 million. Work will be performed in Oklahoma City and Tulsa, Okla. Holly produces gasoline, diese...