A conservative activist turned investor who has criticized Wall Street’s efforts to address climate change and other issues is publicly urging Chevron to pump more fossil fuels over the next decade.

Vivek Ramaswamy, who launched an energy-focused exchange-traded fund nearly a month ago, is among the most prominent critics of so-called environmental, social and governance—or ESG—investing. He quickly turned his sights on Chevron, arguing the country’s second-biggest fossil-fuel company should slow spending on its energy-transition plan, which he said was partially motivated by pressure from top shareholders such as BlackRock