What Magnolia Oil & Gas Corporation told the SEC could break it.

Magnolia is a pure oil & gas producer — oil, natural gas and NGLs were ~40%, 32% and 28% of 2025 production (oil ~70% of revenue) — so its results move directly with crude and natural gas prices; a 15% drop in average prices reduced oil revenue by ~$128.6 million year-over-year, making it a supply-side node highly sensitive to commodity-price shocks.

“Approximately 40%, 32%, and 28% of production from Magnolia's assets was attributable to oil, natural gas, and NGLs, respectively, for the year ended December 31, 2025.”

Magnolia's operations are conducted predominantly in a single geographic area — the Karnes and Giddings areas of South Texas, targeting the Eagle Ford Shale and Austin Chalk — so a region-specific disruption (severe weather, infrastructure/takeaway constraints, regulatory action, or localized geology underperformance) would affect essentially all of its production.

“Magnolia's operations are conducted predominantly in one geographic area of the United States. Magnolia's oil and natural gas properties are located primarily in the Karnes and Giddings areas in South Texas where the Company targets the Eagle Ford Shale and the Austin Chalk formations.”

New EPA methane rules (Subparts OOOOb/OOOOc) impose stricter emissions-reduction, inspection and super-emitter monitoring requirements on Magnolia's oil and gas operations, and the Inflation Reduction Act's Methane Emissions Reduction Program / Waste Emissions Charge adds per-ton fees on methane emissions — raising compliance and operating costs, though the rules face ongoing litigation.

“In December 2023, the U.S. Environmental Protection Agency (“EPA”) published new rules intended to reduce methane emissions from oil and gas sources. The final rule strengthens the existing emissions reduction requirements in Subpart OOOOa, expands reduction requirements for new, modified and reconstructed oil and natural gas sources in Subpart OOOOb.”