Houston American Energy Corp. provided preliminary revenue and production guidance for the quarter ended December 31, 2017. For the quarter, the company preliminary revenue estimates total $414,743 for the quarter ended December 31, 2017, up 842% from the quarter ended December 31, 2016 and up 271% from the quarter ended September 30, 2017 For the quarter, the company preliminary production volume estimates for the quarter ended December 31, 2017 totaled 6,150 barrels of oil (Bbl) and 19,518,000 cubic feet of gas (Mcf)(or 9,403 barrels of oil equivalent (boe)); compared to 1,395 boe of production for fourth quarter 2016 and 2,885 boe of production for third quarter of 2017.