A proposed US pipeline company merger would reportedly create so much market power that the combined company could raise prices for oil and natural gas.

If it could do that, it might discourage consumption, but not enough: we need heavy taxes on petroleum products and an end to all subsidies to raise the price enough to avoid disaster.

The better reason to oppose this merger is that bigger companies have more lobbying power. We need to make large companies split up, except for those that are natural monopolies and ought to be regulated utilities.