Scott Sheffield, the influential founder of Pioneer Natural Resources and a prominent figure in the US shale industry, has publicly recognized the reality of climate change, a shift from the typical stance within the fossil fuel sector. While still emphasizing the world's reliance on fossil fuels, Sheffield has spoken about personal observations of environmental changes at his New Mexico ranch, including hotter summers and changes in precipitation patterns. He noted that out of six oil downturns he's experienced in over four decades, half have occurred in the last eleven years, suggesting increasing market volatility in a "more volatile" world.

Sheffield is considered one of the "fathers of the shale revolution," a technological advancement involving fracking and horizontal drilling that transformed the US from a net oil importer to a net exporter. His company, Pioneer Natural Resources, was sold to ExxonMobil for $64.5 billion in late 2023. Pioneer grew into a $26 billion company by prioritizing aggressive drilling, particularly in the Permian Basin, which by 2019 accounted for nearly 40 percent of US oil production and 5 percent of the global total.

Despite his deep involvement in the oil industry, Sheffield's recent comments suggest a more nuanced view on the future of energy. While he believes the world's energy systems, currently 80 percent reliant on fossil fuels, cannot immediately switch, he also acknowledges that events like the Iran war could be an "impetus" for a quicker transition away from fossil fuels. He also projected a more constrained future for the industry, anticipating a slow-growing or shrinking market due to rising electric vehicle sales and climate change concerns, indicating that the industry may not return to its pre-crisis levels.