Having 3 producing assets instead of 1 will hardly make a...

Having 3 producing assets instead of 1 will hardly make a difference if product can't be sold with good profit margin.

You need demand to pick up and to heave healthy profitable margin for SP to rise.

If GXY aquired A40 and got SDV in production with depressed commodity prices and not enough demand to sell product = market will see that as having 3 liabilities that can pull the company 3 feet under, instead of 1 liability.

There is no magic pill other than healthy demand and price for commodity.
Full stop.