Tetra Technologies (TTI) came out with quarterly earnings of $0.04 per share, in line with the Zacks Consensus Estimate . This compares to earnings of$0.03 per share a year ago. These figures are adjusted for non-recurring items. A quarter ago, it was expected that this oil and gas services company would post earnings of $0.09 per share when it actually produced earnings of$0.09, delivering no surprise.Over the last four quarters, the company has surpassed consensus EPS estimates just once.Tetra Technolog ...