U.S. “stripper well” operators, the nation’s smallest oil producers seen as most likely to succumb to the crude price slump, are hanging in tough, reducing the chances of near-term production cuts needed to rebalance the domestic oil market. The conventional wisdom is that “strippers” would be the first to fold in the face of oil’s slide below $40 given their tiny size – some may pump as little as few hundred dollars’ worth of oil a day – limited access to capital and high costs compared with bigger, more efficient shale producers.