The Marcellus Shale Coalition, the natural gas industry trade group, is expanding its presence in Southeastern Pennsylvania by hiring Shari Williams, a former communications specialist at the Pennsylvania Public Utility Commission and the wife of State Sen. Anthony H. Williams (D., Philadelphia).

Williams, who worked with the PUC for 17 years, led consumer education events on energy and utility issues in Eastern Pennsylvania. She will take on a new role with the shale coalition as outreach manager in the Philadelphia area, where the industry is stepping up efforts to address public apprehension with fracking, which takes place mostly in western and northern part of the state.

The coalition also announced Wednesday it has hired Andrew Paterson as vice president of technical and regulatory affairs. Paterson, an engineer, has worked on the coalition's regulatory staff for the last year on assignment from Talisman Energy USA, a gas producer.