Permian producers spent much of this year paying buyers to haul away the natural gas that comes up with their oil. Waha Hub spot prices stayed below zero for a record 90 days in a row before turning positive on June 16, Reuters reported, and the hub had averaged minus $2.19 per million British thermal units for the year up to that point. Four of the five companies below still posted record results in the second quarter. Three of the five don’t drill at all, and one of the two that do works mostly in North Dakota, far from Waha. The U.S. Energy…