1960's Commonwealth Gas Excerpt-

Bit of a history read on Aussie Gas. In 1969 a Government study summarised Australia and New Guinea's Gas potential.
A lot of this does not relate to the Perth Basin, but the Perth Basin was significant enough to rate a mention in this Paper.
Comment at the end of this excerpt also made me wonder how big the Flare Tower/s were on Barrow Island, Barrow Island was not considered a viable Gas Project in 1969, due to location… but with the Gorgon Gas Project underway and planning to extract approx 40 Trillion Cubic Feet of Gas from this Area it does make you wonder how much gas is under this land…or should I say in the Jurassic Formation level. The Jurassic Formation Level Stretches through the Perth Basin and through to Barrow Island. Although I don't know enough about the geology to know these formations connect.
One other interesting chart I found shows the levels at where Gas has been found within the Perth Basin. The column depicting the Geological levels only shows levels as low as the Late Triassic Era… What could be down in the Permian Levels?

Below the excerpt from Government Study on Natural Gas Aust & Papua New Guinea- 1969 ; Pages


The year 1969 may be justly taken to mark the beginning of
an era of natural gas utilizat~on in Australia. This relatively new form
of energyand chemical feedstock together with its associated "products", LPG and NGL, has been admitted to participate in the industrial and commercial activities of the country by the sheer virtue of its availability in Significant and increaSing quantities.
The cumulative recoverable reserves of the largely non- associated natural gas discovered so far are estimated to be in the . region of 11 trillion (1lxl012)cubiC feet (0.311 x 1012 cubic metres), A Significant portion of this volume has been made commercially available at the previously-mentioned three important market centres.
The largest reserves, 5.3 trillion cubic feet (0.15 trillion cubic
. metres), are in the Eocene sands of the Latrobe Valley Formation in the :\3arracouta and Marlin fields tn the offshore Gippsland Basin. An additional 0.3 trillion cubic feet (0.0085 trillion cubic metres) of the solution gas
are estimated by the producers to be recoverable from the crude oil accumulations of the Kingfish and Halibut fields in this basin. Significant, but very much smaller gas reserves have been found in the Snapper, Tuna and Flounder prospects in the basin. However, at this juncture, their commercial availability is uncertain.
Next in size, about 1.8 trillion cubic feet (0.051 trillion
cubiC metres) are the reserves in the Permian sands tn the Gidgealpa, Moomba and Daralingie gasfields in the Cooper Basin. Toolachee,
the fourth prospect nearby appears to have indications of being a sizeable gasfield; the discovery well tested at a rate of 6.9 and 4.1 million cubic
feet (0.196 and 0.116 million cubic metres) per day of gas on a 7/16-inch (11.1 mm) choke from two separate intervals; the second well, some 8 miles away, (14.5 kilometres) was dry.
4.
The smallest of the three commercially available gas reserves is in the Roma area of the Surat Basin, where some 0.2 trillion cubic feet (0.0057 trillion cubic metres) of gas have been established in over· a dozen small accumulations in the Mesozoic and Permian sands, more than double the reserve established at the end of the previous four-year period,
Most of the r.emaining 35 percent of cumulative reserves of
about 11 trillion cubic feet (0.311 trillion cubic metres) of natural
gas are for the present not commercial because of their less favourable relation to suitable markets. These reserves are in the Gingin, Yardarino, Dongara and Mondarra fields in the Perth Basin; in the Mereenie and Palm Valley fields in the Amadeus Basin, and in the Uramu and Pasca fields
in the Gulf of Papua and at Bwata, Iehi, Barikewa, Kuruand Puri on
land in Papua. However, we may shortly see the Dongara reserves
at least, made commercially available for the nearby Perth market;
and feasibility studies have been made, or are in progress, in respect
of the others, There are not inconsiderable volumes of solution gas
being produced with oil at Barrow Island, but due to the lack of a
suitable market and the choice of water-flood for the production of oil
in preference to gas repressuring, the associated gas is being flared.