One Stone Energy Partners

The firm invests in the energy sector through three transaction types: growth equity for expanding companies, private investment in public equity (PIPE) for listed businesses seeking discrete capital, and recapitalizations for restructuring existing balance sheets. This multi-tool approach allows One Stone to deploy capital across private and public markets, which is relatively uncommon among small and mid-sized energy specialists.

The firm's formal strategy documents do not explicitly separate renewable from conventional energy. The three deal-structure pillars — growth, PIPE, and recap — are applicable across upstream, midstream, downstream, oilfield services, and energy transition verticals. Actual portfolio weights have not been publicly disclosed.