Tetra Technologies delivered better-than-expected earnings in the fourth quarter as the oil and gas services company placed a significant focus on cost management. The company saw a 34% year-on-year decline in operating cost. In reaction to the news, shares of Tetra Technologies (TTI) jumped 7.4% at the end of trade on Wednesday. The company posted a net loss per share of $0.03 during the fourth quarter, which was lower than analysts’ expectations of a net loss per share of $0.04. Revenue decreased by $60.45 million year-on-year to $75.46 million, missing analysts’ estimates of $111.65 million.