Zion Oil & Gas, Inc. (OTCMKTS:ZNOG – Get Free Report) was the recipient of a significant drop in short interest in March. As of March 15th, there was short interest totalling 209,800 shares, a drop of 22.4% from the February 29th total of 270,400 shares. Based on an average trading volume of 7,117,100 shares, the […]