According to a recent LinkedIn post from Deep Fission, the company has begun drilling its first data acquisition well in Parsons, Kansas, marking a shift from planning and engineering into active field development. The planned 6,000-foot borehole is described as the first of three wells intended to collect geological, hydrological, and thermal data for its Gravity Reactor concept.
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The post highlights that this subsurface data is expected to support engineering design, safety analysis, and regulatory planning for a proposed approach that situates small modular pressurized water reactors about one mile underground in sealed boreholes. This configuration is presented as leveraging stable bedrock for natural shielding and containment, which, if validated, could influence project economics and permitting pathways for deep-sited nuclear assets.
Deep Fission’s participation in the U.S. Department of Energy’s Reactor Pilot Program is noted in the post as context for this field activity. For investors, the move into initial drilling may signal progress toward de-risking the company’s technology and site strategy, although commercial timelines, capital requirements, and regulatory outcomes around underground SMRs remain key uncertainties for long-term financial impact.