Methane reacts with a sufficient amount of oxygen to produce carbon dioxide and water. What is the name of the reaction?

Methane and oxygen undergo a chemical reaction known as a combustion reaction, which produces heat and light. 

When ignited, methane undergoes combustion in the presence of enough oxygen to produce carbon dioxide and water.

${\mathrm{CH}}_4+2{\mathrm{O}}_2\to {\mathrm{CO}}_2+2{\mathrm{H}}_2\mathrm{O} (∆\mathrm{H}°=-890.4\mathrm{kJ})$