In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.

Shell Oil Company is the United States-based wholly owned subsidiary of Royal Dutch Shell , transnational corporation " oil major " of Anglo-Dutch origins , which is amongst the largest oil companies in the world .
Shell Oil Company is the United States-based subsidiary of Royal Dutch Shell .