Humble Midstream II Partners and Quantum Capital Group announced a partnership on Jan. 30 for North American infrastructure development and operations.

The statement did not include the amount of Quantum’s capital commitment to Denver-based Humble II.

“With this commitment from Quantum, we are able to focus on building infrastructure solutions that support the North American energy complex,” said Steven Huckaby, Humble II CEO. “As energy security and sustainability remain important issues, we believe that traditional and low-carbon energy solutions will each play a vital role in fueling our world.”

According to the statement, Humble II lists its goals as developing and operating both traditional infrastructure and facilities for the energy transition.

Last September, after Exxon Mobil bought Denbury—a developer of carbon capture technology—Humble II’s Huckaby said enthusiasm for clean-energy midstream was growing.

“In most cases, individual emitters are not likely to have enough scale with their volumes to drive CCS (carbon capture and sequestration) projects on their own,” Huckaby said in September. “So it’s mostly the sequesterers and the midstream leading the dance.”

On Jan. 30, a Quantum partner said the capital group had confidence in Humble II’s experience and ideas.

“They have a demonstrated track record in the infrastructure space and a creative, customer-focused approach to providing solutions to the industry,” said Garry Tanner, Quantum partner. “We believe the current environment presents an attractive opportunity to develop, own and operate energy infrastructure.”

Quantum Capital Group is a private capital investment firm with a focus on renewable energy and decarbonization sectors.