Oil leake next to 0il pan - 2000 Ford Ranger SuperCab

Any type of oil can cause problems to areas not designed to have oil on lt. Make concern is to repair your oil leak as soon as possible. Sounds like it could be your camshaft front seal. Or a simple valve cover gasket.

thats inline with oil pan use mirror and flashlight to see exact location and usually not a coincidence to have leak after changing gasket if not tightened down right ,could have shifted or damaged awhile being replaced

WORN GASKETS// UNTIL THE GASKETS GET WARM IT WILL LEAK AND ONCE THEY WARM UP THEY WILL EXPAND AND NO MORE OIL LEAK.. CHANGES GASKETS AND VACCUM HOSE//

replace hose clamps on pipe fittings to resevoir bottle ,clean and recheck ,normally crimp type factiry clamps leak ,rather replace with normal screwdriver adjustable hose clamps ,should solve problem ,provide bottle not cracked

Oil sending unit? Can't help much without knowing the engine
There are 3 different ones.

if its just the oil pan than just the oil pan drain the oil and pull the pan, you will need some RTV gasket maker to reseal next to the crank, replace the oil pan gaskedt RVT the corners near the crank and bolt it back into place.

you may be able to cure the leak with a thicker, softer gasket on the drain plug. Also the drain plugs come in several oversizes. So if the 1st one doesn't work you can try the next size.

http://www.cgenterprises.com/drain_plugs_oversize_repair.htm.

considering the cost of oil pan replacement I would just add a dab of RTV sealant to the drain plug washer next time I had an oil change.

if it is the trans pan is what you are talking about then it is sealed by rtv silicone but you should check if it is the cooler lines leaking down to the pan and looking like the pan there is also a solenoid pack on some vehicles that leaks down as well.

The oil pump is in the pan you may be leeking oil from the oil sending unit next to the oil filter or the filter may be leeking . get under vehicle after safely securing it wipe off and figure out where it is leaking from if oil pan is rusted through replace oil pan. usually its the oil sending unit switch usually under 20 dollars for part and it screws on and off

Drain the oil from the system. Next remove the oil pan and reinstall a new oil pan and new oil pan seal.