URL https://www.researchgate.net/profile/S-Jolley/publication/240675620/figure/fig5/AS:404430307512327@1473435107908/a-Diagram-showing-the-different-gas-and-oil-water-contacts-across-the-Pierce-Field-in_Q640.jpg
URL2 https://www.researchgate.net/figure/a-Diagram-showing-the-different-gas-and-oil-water-contacts-across-the-Pierce-Field-in_fig5_240675620
