Stephen Rassenfoss

A surge in permit applications for long-term carbon storage sites reflects where industrially produced carbon dioxide can be harvested, and where the necessary pipelines are.

More freshmen are enrolling in petroleum engineering, drawn by strong demand for graduates.

Bakken oil production surprised on the upside showing it can grow, but an encore is not expected this year.

Chevron has some new ideas on how to get more oil for less cost out of shale wells in their early years.

A 44-well development tests what ConocoPhillips has learned about maximizing the value of the wells by figuring out how they drain the reservoir.

As the biggest US companies grow bigger, the advantage of scale becomes clearer.

Matthew Bryant has spent years trying to convince engineers that the API proppant testing standard has significant limitations. And he may well be right.

Fervo Energy proved fracturing can harvest geothermal energy and is now rapidly learning to build a utility-scale power plant.

Maximizing profits in geothermal energy may require the flexibility to adjust output as electricity prices fluctuate. Battery storage can ensure power is available when prices peak.

What we've learned about faster drilling in oil and gas applied just as well to geothermal development—until we reached The Geysers.