XML 49 R29.htm IDEA: XBRL DOCUMENT v3.26.1

Description of Business and Basis of Presentation (Tables)

3 Months Ended

Mar. 31, 2026

Accounting Policies [Abstract]

Assets and Investments Table

As of March 31, 2026, the Partnership’s assets and investments consisted of the following:

						Wholly Owned and Operated						Operated Interests												Non-Operated Interests						Equity Interests
Gathering systems						13						2												1						—
Treating facilities						43						3												—						—
Processing plants/trains						27						3												—						1
Produced-water gathering, treating, recycling, and disposal systems						8						—												—						—
NGLs pipelines						2						—												—						4
Natural-gas pipelines						6						—												—						1
Crude-oil pipelines						2						1												—						1

X

- References

No definition available.

+ Details

Name:	us-gaap_AccountingPoliciesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the assets and investments accounted for under the equity method.

+ References

No definition available.

+ Details

Name:	wes_AssetTableTextBlock
Namespace Prefix:	wes_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration