How did john d. rockefeller secure his monopoly in 1882? he created a trust that controlled oil wells, refineries, and distributors. he broke up his company so it could operate in more than forty states. he purchased coal plants around the country to add to his business. he purchased iron mines around the country to add to his business.

The battle of sabine pass is important because? a) it was a stalemate between union and confederate armies. b) it resulted in the largest confederate casualty in the war. c) it marks the failed attempt of the union army to invade the confederate state of texas. d) it was won by the union soldiers and marked a turning point in the western front of the war.