Lime Rock Partners invests growth equity in oil and gas producing companies with an established reserve base and startup companies using growth capital to develop new resources. Its portfolio companies focus on niche global opportunities, such as developing unconventional natural gas resources or developing smaller fields in mature basins.

Lime Rock Partners invests in energy service companies with growth strategies in attractive market niches. It invests in service companies targeting energy producers worldwide and companies targeting attractive regional markets such as the U.S. Rockies, North Sea, or Central Europe.

Lime Rock Partners invests in oil service technology companies developing high-impact technologies that offer measurable improvement in oil and gas production and extraction. It invests in technology companies with developed and technically feasible products and companies seeking growth capital to commercialize those products or to expand into international markets.

Lime Rock Partners also selectively invests in high-growth, entrepreneurial companies in other sectors of the energy sector, such as developers of midstream assets, downstream technologies, or renewable energy projects.