Agree with TennisDaze. In short, NGLs are only sold IF they’re processed, so processing is a necessary evil. Oil and gas at least have the option of being sold at the wellhead and not technically processed. If gas is not processed, it’s just “wet gas” (NGLs are still mixed in with the gas) and is priced at a higher value. That said, processing wet gas and transforming it into “dry gas” (no more NGLs in the gas) increases the value of it since you can typically sell the NGLs off it for more than if they were still stuck in the gas, but it’s still an expensive process.
Oil is relatively easy to sell, and is tied more to gasoline prices since many producers have their oil trucked away (so hauling fees have to cover gasoline prices, the truck driver, and other overhead). Usually it’s about a $4 deduction per barrel for oil to cover those types of expenses, but the quality of the oil also affects the amount of deduction (water and sediment in the oil increases the deduction).
I’ve seen gas typically in the $0.70-$1 range for processing.
NGL is harder to say how much $ taken off for processing, but final pricing you’re paid on is usually 25-45% of whatever oil is selling for. When the market was more stable, 40% was pretty normal. When NGLs took a hit in 2019, 25% was the norm for a few quarters. I haven’t actually calculated it lately…not sure how the current dynamics are affecting things.