Regular mineral aka dinosaur oils, change at 5000km, no point doint it any earlier wasting your money, people who say at 2000km are crazy, they must be sitting at oil changer every month.
For semi-synthetic which are mixed synthetic/mineral oils, go even longer, say 7000 km.
For fully synthetic, change around 5-7000 the first 2 changes, after that you can comfortable go 10,000 or more before change.
If your on cng I believe you can increase all these intervals even longer. Motor oil never "wears out", but the detergents in them degrade and they lose their efficacy. Some people suggest you also change the oil no matter how many km as well but also every 3 months or so regardless of mileage.
Its also best to consult your manual.