"Having that long-term customer on the back end makes it really easy to go and find financing," Casey Holsapple, VP of business development at US midstream operator Kinder Morgan, told S&P Global Commodity Insights on the sidelines of the RNG Conference on Dec. 14. "Whereas when you go to a bank or financial partner and you say, 'Hey, I'm finding my revenue solely dependent on D3 RINs,' they might go back to the past five years and see D3 RINs have gone down to 60 cents/gal at times ... so that volatility gives a lot of people pause.