From AUT's company presentation dated 13th JuneAUT 1p reserves...

From AUT's company presentation dated 13th June

AUT 1p reserves 80mmboe pre royalties (59mmboe post royalties)
AUT 2p reserves 92mmboe pre royalties (67mmboe post royalties)

MAD 1p reserves 102million barrels OIL
MAD 2p reserves 192million barrels OIL

The major difference between AUT and MAD is:

MAD 1p reserves far greater than AUT 2p reserves.
MAD has Black OIL barrels while AUT has Barrels of oil equivilant.

The oil that MAD produces is a higher quality oil and has an $18 premium to light crude.

DYOR