COLORADO SPRINGS, Colo.—If there were any thoughts about U.S. oil and gas producers shrugging their shoulders, giving up and disappearing sheepishly into the night at the hands of challenges from environmentalists and elected officials, think again.

Speakers and attendees on hand at the International Petroleum Association of America’s (IPAA) annual meeting on July 21 at The Broadmoor said it’s time to tighten their bootstraps and get to work setting the record straight—to the public and investors—about the importance of fossil fuels to modern and future society.

The tone for the day was set early as popular author and energy philosopher Alex Epstein took the stage to discuss what he’s been writing about for years now, “why global human flourishing requires more oil, coal and natural gas—not less.” Epstein touted the work of a growing number of industry executives and select politicians who have stepped out of the background and worked to take back the narrative on the importance of oil and gas around the world.

“We’re seeing more and more people stand up in an articulate way. I also think we are seeing more and more elected officials speaking up in an articulate way,” Epstein told the audience of oil and gas industry professionals.

He went on to say that cost-effective energy is necessary for human flourishing and billions of people around the world still lack access to cost-effective energy. Solar, wind and other renewables, although part of the future energy mix, are still hampered by high costs, and need subsidies and mandates, rendering them unable to truly be scalable to the world’s needs right now.

That means oil and gas producers are still very much on the front lines of ensuring energy security around the globe.

Investors are starting to agree—again.

Oil and gas is starting to show green shoots of rejuvenated opportunity for investors, according to panelists on a public capital roundtable.

Independent producers today are creating large cash flow. Commodity prices are allowing them to do what shareholders have been asking them to do for years—to return capital and remain disciplined, according to Steve Trauber, vice-chairman and global co-head of natural resources and clean energy transition at Citi.

Trauber indicated the mindset has changed as the sector had faced underinvestment in recent years in the wake of environmental pressure by the public and politicians. With energy security on the table, investment in infrastructure and fossil fuel production has come back into the spotlight. “It’s energy addition, not transition,” he said.