The letter to Fed Chairman Jerome Powell said the expansion was a "back-door bailout of the oil and gas sector, done at the urging of President Trump."
Without climate targets, global investors wary of oil sands will avoid producers, prime minister says.
Shareholder activists have this year taken up a call to split the CEO and chairman roles at Exxon Mobil, expecting a better reception for climate-change proposals from an outsider.
Energy Spectrum Capital said its eighth fund will continue to invest primarily in midstream assets within the energy industry and has so far committed to four new portfolio companies with a fifth in documentation.
The group, named the Bakken Restart Task Force, will play a critical element for protecting the over 72,000 jobs contributed by the oil and gas industry in North Dakota, the second largest oil-producing state.
Investment interest for oil and gas companies in the coming months will be significantly impacted by ESG factors.