Energy Services | Industrywide Issues | MarkWest Energy | Pennsylvania | Processing Plants | Regulation | Washington County
PA DEP Issues Permit for Expansion of MarkWest Harmon Creek Plant
The Pennsylvania Department of Environmental Protection issued an air quality permit on May 18, 2026, to MarkWest Liberty Midstream, authorizing the expansion of its Harmon Creek Natural Gas Processing Plant in Washington County. The MarkWest name is still used, although the company is now MPLX. The DEP permit approval allows the addition of a third cryogenic plant and a second de-ethanization plant. A number of Big Green groups colluded in an attempt to block the permits, but their demands were ignored. Read More “PA DEP Issues Permit for Expansion of MarkWest Harmon Creek Plant”
Pennsylvania Republican gubernatorial candidate Stacy Garrity (currently the State Treasurer) yesterday called for a “total pause” on Pennsylvania A.I. data center development, arguing communities need time to update zoning, protect neighborhoods and farmland, strengthen noise rules, and secure transparency on water, energy, health, infrastructure, taxpayer, and ratepayer impacts. While we have expressed similar sentiment that common-sense guidelines are needed for data centers regarding water, noise, and energy use, we strongly disagree with a total statewide (and indefinite) “pause” on new projects. It sends the exact WRONG signal to the tech industry — that both Republicans and Democrats in the state are now blocking data centers in the Keystone State. Pausing or blocking data centers jeopardizes $92 billion worth of private investment in the state. 
Ohio Governor Mike DeWine announced on May 27, 2026, that he has directed the chair of the Ohio Tax Credit Authority to pause consideration of any new data center tax exemption requests. The pause comes while the Ohio General Assembly’s Joint Data Center Committee “studies” the growth of data centers in the state. DeWine noted that data centers previously granted sales and use tax benefits reported a total capital investment of $27.2 billion in 2025. The Tax Credit Authority will stop accepting new exemption proposals after a meeting next Monday, where it will consider one final proposal. DeWine said the move is a suspension of new exemptions, NOT a data center ban. 
Pennsylvania Governor Josh Shapiro introduced new “Responsible Infrastructure Development (GRID) Standards” for data center developers yesterday. These standards aim to tie tax breaks to sustainability and transparency, addressing concerns about energy affordability, pollution, noise, and overall quality of life. Under Shapiro’s GRID plan, data center developers seeking tax exemptions would need to demonstrate that they meet requirements to protect energy affordability, promote transparency and community engagement, support workforce development, and safeguard the environment. Projects would also be required to incorporate so-called clean energy sources and adhere to strict efficiency and environmental protection measures. 
Sen. Jarrett Coleman (R-Bucks/Lehigh) and Rep. Jamie Walsh (R-Luzerne) have introduced legislation in Pennsylvania to address the rapid expansion of data centers. Their proposed bills aim to repeal a 2021 tax exemption that incentivizes data centers to locate in the state. The bills would also empower municipalities to implement an 18-month moratorium on data center development applications. With all due respect, these two Republicans have lost their way and are out of their minds. 
The Warren, OH, City Council introduced legislation to impose a permanent ban on new data centers, citing concerns about water supply, wastewater infrastructure, utility costs, and the city’s residential character. Sponsored by Democrats, the proposed ordinance argues that data centers place unsustainable demands on city systems, particularly following a costly wastewater plant upgrade. One Council Democrat drew parallels between data centers and past fracking “disappointments” in the region, emphasizing water as the community’s most critical resource. 
The highly functional and responsible Susquehanna River Basin Commission (SRBC), unlike its dysfunctional and irresponsible counterpart, the Delaware River Basin Commission (DRBC), continues to support the shale energy industry by approving water withdrawals and consumptive use requests for responsible, safe shale drilling. The SRBC published a notice in the May 23rd Pennsylvania Bulletin that the SRBC approved and/or renewed 33 general water use permits in April for individual shale gas well drilling pads in Bradford, Cameron, Lycoming, Sullivan, Susquehanna, Tioga, and Wyoming counties. 
Well, you knew this was going to happen. Last week, a group of disgusting Big Green groups and the New York State Attorney General both filed separate lawsuits in the U.S. Court of Appeals for the Second Circuit (2nd Circuit), challenging the Federal Energy Regulatory Commission’s (FERC) decision to resurrect the Constitution Pipeline under the existing (but dormant) docket. NY AG Tish James, representing the Department of Environmental Conservation (DEC), argues that a brand new review should be done by the state to evaluate the project for compliance with the federal Clean Water Act. You may recall that NY previously lost its right to evaluate the Constitution project by stretching out its review for years, causing FERC to overrule NY (see 
U.S. Secretary of Energy Chris Wright issued an emergency order on May 21 directing PJM Interconnection and Constellation Energy to keep Units 3 and 4 at Pennsylvania’s Eddystone Generating Station (near Philadelphia, in Delaware County) operational through the summer. Effective from May 25, 2026, to August 22, 2026, the mandate aims to ensure grid reliability. This directive follows four previous 90-day orders that have kept the aging, dual-fuel units online to support energy security. The DOE asserts that despite planned retirements, these 380-MW units remain essential for stabilizing the regional power supply. Big Green wants to close them down. 
Last Thursday (May 21), the commissioners of the Federal Energy Regulatory Commission (FERC) unanimously proposed significant changes to the agency’s natural gas blanket certificate program, the most substantial overhaul since 2006. The Notice of Proposed Rulemaking (NOPR) aims to roughly double the cost thresholds for pipeline companies to build and modify infrastructure without extensive case-by-case approval. It also expands eligible project categories and, for the first time, extends streamlined authorization to certain LNG facility activities. 
On March 18, President Trump issued a 60-day waiver pausing the enforcement of the Jones Act (see 
On May 14, the Pennsylvania Department of Environmental Protection (DEP) issued a notice of violation to Sandstone Development LLC for operating the McKay 7A conventional well as an oil and gas wastewater injection disposal site in McKean County without a state permit. Which may sound like a major, flagrant (intentional) violation. But it’s not. Sandstone holds a federal EPA permit allowing daily injections of up to 10,500 gallons. Sandstone said it was unaware that, in addition to the federal EPA permit, it is also required to seek and obtain a state DEP permit for the same thing. In other words, Sandstone didn’t ask DEP, “Mother, May I?” 