The report card for unconventional oil and gas producers from a leading industry analyst is A+ for growth and F- for paying back investors. But Bob Bracket, senior analyst for Bernstein Research, who created the report card, said he is seeing signs of change. On the production side, the industry is struggling to keep up with the Permian Basin because output is exceeding available pipeline capacity. On the supply side, the industry may be moving away from pushing production so hard it drives down prices to levels where no one can make money. As this business has recovered from the last down cycle, it has “behaved for the last 6 quarters,” he said.