Final answer:
The interest group that represents the oil and gas industry is the Organization of Petroleum Exporting Countries (OPEC), which influences global oil prices.
Step-by-step explanation:
The name of the interest group that represents the oil and gas industry is the Organization of Petroleum Exporting Countries (OPEC). This consortium of oil-producing countries was formed in 1960, with the aim to maximize profits related to oil exports. The members of OPEC, which includes nations such as those in the Middle East as well as Venezuela, Angola, Nigeria, and Ecuador, hold a significant portion of the world's oil reserves, giving them considerable influence over global oil prices.