Oil and Gas Properties (Details Textual)	3 Months Ended
Dec. 31, 2017 a oil	Jan. 29, 2018 ha
Oil and Gas Properties (Textual)
Gas and oil area, gross \| a	43,015
Gas and oil area, net \| a	34,096
Subsequent Event [Member]
Oil and Gas Properties (Textual)
Gas and oil area, gross \| ha		2,816
Gas and oil area, net \| ha		704
Land One [Member]
Oil and Gas Properties (Textual)
Lease agreements, expiration date	Jul. 10, 2018
Number of oil and gas for leases	5
Land Two [Member]
Oil and Gas Properties (Textual)
Lease agreements, expiration date	Aug. 19, 2019
Number of oil and gas for leases	3
Land Three [Member]
Oil and Gas Properties (Textual)
Lease agreements, expiration date	Apr. 09, 2024
Number of oil and gas for leases	1

Number of oil and gas properties located on land subject to leases.

No definition available.

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Namespace Prefix:	dwog_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- References

No definition available.

+ Details

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- Definition

Lease area in which a working interest is owned and on which wells have not been drilled or completed to a point that would permit the production of commercial quantities of oil and gas regardless of whether or not such area contains proved reserves.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1208
-Paragraph (b)

+ Details

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- Definition

Fractional interest owned based on working interests or other economic arrangements of lease area on which wells have not been drilled or completed to a point that would permit the production of commercial quantities of oil and gas regardless of whether or not such area contains proved reserves.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1208
-Paragraph (b)

+ Details

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- Definition

Date which lease or group of leases is set to expire, in CCYY-MM-DD format.

+ References

No definition available.

+ Details

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- Details

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Namespace Prefix:
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- Details

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Namespace Prefix:
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- Details

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- Details

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