Encara no tenim significats per a "make uneconomic".
1There were mounting worries that U.S. oil producers carrying a lot of debt would be made uneconomic by the price drop.
2There were also worries that U.S. oil producers that had issued a lot of debt would be made uneconomic by the price drop.
3There were mounting worries that U.S. oil producers that had issued a lot of debt would be made uneconomic by the price drop.