SLIPPERY ROCK — The Penn State Extension will have a natural gas workshop that will focus on seismic testing, pipeline agreements and leases from 6:30 to 8:30 p.m. Thursday at the Slippery Rock Township Building, 155 Branchton Road.

Presenting will be educators Dan Brockett and Jon Laughner, both from the Penn State Marcellus Education Team. A question-and-answer period will follow their presentations.

To register, contact the Butler County Extension office at 724-287-4761.

There will be a $10 fee per person collected at the door.