Sites said he relied on a private investor to finance the company in March 2010 because he could not get financing from a bank.
Republicans contend President Obama’s environmental regulations threaten domestically produced energy, such as coal and natural gas.
Sites, a registered Republican who lives in Peters, donated $1,000 to the Romney campaign in November, federal campaign records show. He said he is not a GOP regular.
“I have voted for members of both parties before,” he said.
State Sen. Kim Ward, R-Hempfield, recruited Sites’ company for the Romney visit.
“I am definitely leaning strongly towards Romney,” Sites said. “I am interested in the candidate who plans to further our advancement in oil field service and who is best for the energy industry.”