Nature of Business and Basis of Presentation	12 Months Ended
Sep. 30, 2020
Accounting Policies [Abstract]
NATURE OF BUSINESS AND BASIS OF PRESENTATION	1. NATURE OF BUSINESS AND BASIS OF PRESENTATION Nature of Business Deep Well Oil & Gas, Inc. was originally incorporated on July 18, 1988 under the laws of the state of Nevada as Worldwide Stock Transfer, Inc. (Worldwide Stock Transfer, Inc. later changed its name to Allied Devices Corporation) and in connection with a plan of reorganization, effective on September 10, 2003, the company was reorganized and changed its name to Deep Well Oil & Gas, Inc. (“Deep Well”). Deep Well together with its subsidiaries, Northern Alberta Oil Ltd. and Deep Well Oil & Gas (Alberta) Ltd, (collectively referred to as the “Company”) is an independent junior oil sands exploration and development company with an existing oil sands land base in the Peace River oil sands area in Alberta, Canada. These consolidated financial statements have been prepared showing the name “Deep Well Oil & Gas, Inc. (and Subsidiaries)” (“the Company”) and the post-split common stock, with $0.001 par value. Going Concern The Company’s consolidated financial statements are prepared using generally accepted accounting principles applicable to a going concern which contemplates the realization of assets and liquidation of liabilities in the normal course of business. As of September 30, 2020, the Company has a working capital deficit, and continues to have an accumulated deficit and has generated negative cash flows from operations. These factors raise substantial doubt regarding the Company’s ability to continue as a going concern. In order to continue as a going concern and achieve a profitable level of operations, the Company will need, among other things, additional capital resources and to develop a consistent source of dependent upon the ability to raise equity or debt financing, and the attainment of profitable operations from the Company’s operations. The management of the Company is developing a strategy, which it hopes will accomplish this objective through short-term related party loans and additional equity funding, which will enable the Company to operate for the coming year. The accompanying consolidated financial statements do not include any adjustments that might be necessary if the Company is unable to continue as a going concern. Basis of Presentation The consolidated financial statements for the year ended September 30, 2020 included herein have been prepared by the Company, without audit. These consolidated financial statements are expressed in U.S. dollars and are prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”). These statements reflect all adjustments, consisting solely of normal recurring adjustments (unless otherwise disclosed) which, in the opinion of management, are necessary for a fair presentation of the information contained herein.

Nature of Business and Basis of Presentation

12 Months Ended

Sep. 30, 2020

NATURE OF BUSINESS AND BASIS OF PRESENTATION

1. NATURE OF BUSINESS AND BASIS OF PRESENTATION

Nature of Business

Deep Well Oil & Gas, Inc. was originally incorporated on July 18, 1988 under the laws of the state of Nevada as Worldwide Stock Transfer, Inc. (Worldwide Stock Transfer, Inc. later changed its name to Allied Devices Corporation) and in connection with a plan of reorganization, effective on September 10, 2003, the company was reorganized and changed its name to Deep Well Oil & Gas, Inc. (“Deep Well”).

Deep Well together with its subsidiaries, Northern Alberta Oil Ltd. and Deep Well Oil & Gas (Alberta) Ltd, (collectively referred to as the “Company”) is an independent junior oil sands exploration and development company with an existing oil sands land base in the Peace River oil sands area in Alberta, Canada.

These consolidated financial statements have been prepared showing the name “Deep Well Oil & Gas, Inc. (and Subsidiaries)” (“the Company”) and the post-split common stock, with $0.001 par value.

Going Concern

The Company’s consolidated financial statements are prepared using generally accepted accounting principles applicable to a going concern which contemplates the realization of assets and liquidation of liabilities in the normal course of business. As of September 30, 2020, the Company has a working capital deficit, and continues to have an accumulated deficit and has generated negative cash flows from operations. These factors raise substantial doubt regarding the Company’s ability to continue as a going concern. In order to continue as a going concern and achieve a profitable level of operations, the Company will need, among other things, additional capital resources and to develop a consistent source of dependent upon the ability to raise equity or debt financing, and the attainment of profitable operations from the Company’s operations. The management of the Company is developing a strategy, which it hopes will accomplish this objective through short-term related party loans and additional equity funding, which will enable the Company to operate for the coming year. The accompanying consolidated financial statements do not include any adjustments that might be necessary if the Company is unable to continue as a going concern.

Basis of Presentation

The consolidated financial statements for the year ended September 30, 2020 included herein have been prepared by the Company, without audit. These consolidated financial statements are expressed in U.S. dollars and are prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”).

These statements reflect all adjustments, consisting solely of normal recurring adjustments (unless otherwise disclosed) which, in the opinion of management, are necessary for a fair presentation of the information contained herein.