SASless,
I would suggest there's not enough oil in Afghanistan to light up an old time miner's lantern.
One might suggest that you are somewhat incorrect in the above statement.
Afghanistan is extremely rich in minerals. The deposits are vast, and include so many minerals that are essential to modern industry that Afghanistan could eventually be transformed into one of the most important mining regions in the world. Afghanistan is one of the countries with the richest and biggest intact mines in the world.
The list of minerals includes deposits of barite, chromite, coal, copper, gold, iron ore, lead, natural gas (444 billion cubic meters of natural gas, and 562 Million barrels of natural gas liquids), petroleum (a minimum of 1.8 billion barrels in the North alone), precious and semiprecious stones, salt, sulfur, talc, and zinc. Precious and semiprecious stones include high-quality emerald, lapis lazuli, red garnet and ruby. Critical industrial metals include lithium.
Soviet Geologists, during the Soviet occupation of Afghanistan, carried out geological surveys and produced reports. These reports were forgotten about when the Soviets withdrew in 1989. In 2004 US geologists disovered some of the data in the library of the Afghan Geological Survey in Kabul. Further, and more detailed, geological surveys carried out have discovered additional minerals/ deposits and have allowed more accurate values placed on them.
Since 2007 China has, and continues to invest vast amounts of money in the extraction of minerals. One example is the Aynak copper mine in Logar province. China is, and will, dominate the control of mineral extraction.
It is kind of ironic that neither the US (and allies), nor the Soviet Union (as it was) will be able to profit from all their "investments" in Afghanistan. China, does, and will.
Besides political control, the mineral wealth is also another reason Iran would like to control Afghanistan. Control the minerlas and supply, control the nations that use them (and get rich).
Have a read of the following: -
China’s Role in Shaping the Future of Afghanistan
Also look here: -
Oil & Natural gas Viewer