Answer

The correct choice:

$372,000.

Red marks not to be used in calculations. Green marks that are used in calculations.

First we find the total amount of oil produced by the two companies.

3000 + 5000 = 8000 barrels of oil.

Next, sell half of the oil produced at the price of November.

8000 * 0.5 * $47 = $188,000

Next we sold a quarter of the oil at December price.

8000 * 0.25 * $42 = $84,000

Then we sold a quarter of produced oil at January price.

8000 * 0.25 * $50 = $100,000

Next we add up all the profits.

$188,000 + $84,000 + $100,000 = $372,000

The answer is $372,000.