trending Market Intelligence /marketintelligence/en/news-insights/trending/0aq0mMPaDY_GK681rYOauA2 content
Log in to other products

Login to Market Intelligence Platform


Looking for more?

Contact Us

Request a Demo

You're one step closer to unlocking our suite of comprehensive and robust tools.

Fill out the form so we can connect you to the right person.

If your company has a current subscription with S&P Global Market Intelligence, you can register as a new user for access to the platform(s) covered by your license at Market Intelligence platform or S&P Capital IQ.

  • First Name*
  • Last Name*
  • Business Email *
  • Phone *
  • Company Name *
  • City *
  • We generated a verification code for you

  • Enter verification Code here*

* Required

Thank you for your interest in S&P Global Market Intelligence! We noticed you've identified yourself as a student. Through existing partnerships with academic institutions around the globe, it's likely you already have access to our resources. Please contact your professors, library, or administrative staff to receive your student login.

At this time we are unable to offer free trials or product demonstrations directly to students. If you discover that our solutions are not available to you, we encourage you to advocate at your university for a best-in-class learning experience that will help you long after you've completed your degree. We apologize for any inconvenience this may cause.

In This List

Pennsylvania rejects proposal to change size rules for coal mine pillars

Q2: U.S. Solar and Wind Power by the Numbers

Essential Energy Insights - September 17, 2020

Essential Energy Insights September 2020

Rate case activity slips, COVID-19 proceedings remain at the forefront in August

Pennsylvania rejects proposal to change size rules for coal mine pillars

The Pennsylvania Department of Environmental Protection rejected a proposal to change size requirements for coal mine pillars and allow alternative methods for constructing natural gas wells where coal is mined underground.

"Natural gas extraction is increasingly intersecting with longwall mining, particularly in southwestern Pennsylvania," said DEP Acting Secretary Patrick McDonnell in a Jan. 19 news release. "While new drilling methods may make extraction more efficient, coal miners' safety remains our primary concern. For this reason, DEP stands by the established regulatory benchmarks that we believe better protect miner safety and maintain the integrity of gas wells."

DEP reviewed a study and field tests conducted at CONSOL Energy Inc.'s Enlow Fork Mine to determine if 1957 standards for the dimensions of coal mine pillars, columns of coal or rock left in place in the mine to support overlying rock and furnish protection for gas wells drilled in the permitted area of a mine, should be revised in light of modern longwall mining methods.

The results showed that subsidence-related deformation could occur if a support pillar is not suitably sized, the release said.