About Us

Mannion Drilling are a private family run company, with a history that dates back almost 100 years. Our Company Director, Jason Mannion, is a fourth generation driller with over 30 years of drilling experience and knowledge.


As a family business passed on down through the generations the Cox-Mannion connection would be one of the longest surviving drilling families in Australia. It is now into the fourth generation with Jason Mannion. The next (and fifth) generation will probably end up catching the drilling bug too with Jason and Jacinta’s only son Mitchell visiting drill sites since he was five months old. It is obviously that he loves being out on sites with his dad, loves the great machinery and helping out in the middle of summer all over the Northwest, NSW. Jason is naturally a proud dad.

Charles Cox, born in 1888 was a driller first on the Darling Downs and then moving into northern NSW. He started drilling with steam-driven early model Southern Cross rigs almost 100 years ago. His son Mervyn (Snow) Cox followed him in his business, and this was then succeeded by his nephews George, Curly, and Neville Mannion. So this makes four generations of drillers, although there was a name change from Cox to Mannion.

Five generations of drillers

While an exact date cannot be traced as to when Charles Cox first started drilling, it is estimated to be just after his discharge from the First World War Charles married Rosina Rettke and they had four sons and three daughters and at one stage all four sons and three son-in-laws were drilling in Queensland and Northern NSW.

Daughter Ivy (Mannion) recalled from her early childhood that Charles had a thrashing machine which was driven by a steam-traction engine, and this was taken from property to property helping the farmers with their harvest. Her first memories of a drilling rig were in the early 1920s when Charles operated his rig in the Morven area, but it could well have been earlier.

Charles had the distinction of owning the first T-model Ford in the Freestone area, on Queensland’s Darling Downs. Charles and Rosina’s eldest son Albert (Jack) was a drilling contractor at Moree and sons Ray and Greg were also drillers for a time. Their second son, Charles (Bill) Cox drilled around the Warwick area. Mervyn (Snow) worked with his father in Queensland and northern NSW and eventually settled at Quirindi. The youngest son Ron was at Boggabri and one of his sons, Malcolm was also drilling for a while.

Charles and Rosina’s eldest daughter Daisy married Arthur (Larl) Shelley and they settled at Goondiwindi and their four sons Ken, Keith, Arthur and Ian were also driller’s. The second daughter, Ivy married J.W. George Mannion and he was a driller and four of their six sons at one staged worked on the rigs. Sons Mervyn (Curly) and Leonard (George) worked with Snow Cox, eventually taking over his business. Ivy and George’s second son, Neville, based himself in Delungra, where Neville taught Jason from a very young age the in’s and out of drilling and with such a passion for the industry purchased the Business in 2000. Mannion Drilling was based out of Inverell until 2011 and after a decade of drilling in the Gunnedah basin decided to relocate operations out of Gunnedah in NSW.

Since Jason purchased the business from Neville and Dorothy the business has expanded from the one drill rig to five with the latest rigs having all the “bells and whistles” and safety inclusions to keep up with ever changing drilling operations for clients. The youngest daughter, Myrtle, married John Shelley and they too settled at Goondiwindi and their two sons Lionel and Arthur were drillers, whilst Lionel’s two sons Bob and Kevin were also drilling in Queensland. While textbooks can be written about drilling techniques, and advances made to rigs by modern technology, many interesting stories can be told by the Cox family members about drilling – from the deep holes in the Great Artesian Basin, to the Gulf and down into the thick gravel beds producing irrigation water in the Namoi Valley, and now coal exploration is the “buzz” word.

Committed to Safety

We are a company that is committed to providing a safe place of work, and have an outstanding safety record, which we have achieved through the promotion of safe work behaviours within our team and of course using well-maintained equipment and the very latest machinery.

Mannion Drilling’s first priority is the health and safety of our people.

Our Safety Management System is in place to deliver effective guidance towards our company safety goals.


The drilling industry provides an exciting career opportunity for those seeking a rewarding and enjoyable career. Mannion Drilling are focused on having the right staff for the job.

If you are considering a career within the drilling industry you can send us your details along with resume by emailing admin@manniondrilling.com.au

Want to know more about us?

We offer services such as water bores with NSW artesian waterwell license through to mineral exploration holes.

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P.O. Box 727
Gunnedah NSW 2380

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