It can start with: "Despite being regulated, the operation and supervision of large oil companies has been failing which correspond to ..."
Explanation:
The first paragraph of an essay should expose Melinda's discontent, in addition to serving as an introduction to the topic she will address. As her disgrace is specifically with the regulation of these companies, she can show that even with a regulation these companies have flaws in social or economic levels that she will describe in the course of the essay.
