If it was net-negative, I suppose not, although for the fossil fuel sector we are talking about emissions that come from the production of fossil fuels. What's important to understand is that a lot of emissions come from the use and combustion of fossil fuels. Even if we did have net-zero oil and gas production, the selling and combustion of the oil and gas is still going to contribute to climate change, so I don't think that sector can ever actually be net zero.
On November 24th, 2022. See this statement in context.