"...demand for petrochemicals used in plastic will grow overall demand for oil. "
I don't mean the grammar, I mean I don't understand the supply and demand of this.
I think it means gas is a feed stock for petrochemicals....thus you get oil sometimes when drilling for gas..thus more oil..
It means many billion dollar plastic feedstock plants. ...big growth in capital spending ...jobs and gdp growth.
Read it like this:
Growth in the demand for petrochemicals used in plastic will increase overall demand for oil.
It’s hip to use terms like “grow the economy” though its grammatically incorrect.