Investment adviser · CRD 289099

BASIN OIL AND GAS MANAGEMENT, LP

Investment adviser filing (IA)

FORT WORTH, TX, United States · Form ADV filed Mar 31, 2026

Regulatory AUM: $493M
Client accounts: 5
Employees: 8
Advisory professionals: 8

Who they report serving

Form ADV · Item 5.D

Client types and their share of reported regulatory assets.

Client type	Clients	Regulatory assets	Share of AUM
Pooled investment vehicles	5	$492,662,498	100.0%

Filing source

Form ADV 2083553 · Mar 31, 2026 · Item 5.D

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

Private funds & service providers

6 Private funds

The count excludes feeder funds. Funds in the latest filing appear first, ordered by reported gross assets. Earlier funds retain their last reported values.

BASIN ACQUISITON FUND II, LPPrivate Equity Fund · Last reported Mar 31, 2026$241MGross asset value

Form D fundraising filings

Basin Acquisition Fund II, LP

Fund administrator COBALT FUND SERVICES DALLAS, Texas, United States Investor statements: Yes (provided to all investors) Related to adviser: No

Auditor WEAVER AND TIDWELL, LLP. FORT WORTH, Texas, United States

Custodian TEXAS CAPITAL BANK, N.A. DALLAS, Texas, United States Related to adviser: No

Marketer CHAMPLAIN ADVISORS, LLC DORADO, Puerto Rico, United States Related to adviser: No

Provider details

Annual audit: Yes
Prime brokers: No
Custodians: Yes
Administrator other than the adviser: Yes
External marketing: Yes

WEAVER AND TIDWELL, LLP.
PCAOB 410

TEXAS CAPITAL BANK, N.A.
LEI 38PG5GG0OEQK4QMSKE59

CHAMPLAIN ADVISORS, LLC
CRD 129560 · SEC 8-66233

Fund details & source

Fund ID: 805-9572492476
Reported beneficial owners: 33
Minimum commitment: $10M
Form D file number: 021-295352

Form ADV 2083553 · Mar 31, 2026 · Schedule D 7.B.(1)

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

BASIN ACQUISITION FUND III, LPPrivate Equity Fund · Last reported Mar 31, 2026$143MGross asset value

Fund administrator COBALT FUND SERVICES DALLAS, Texas, United States Investor statements: Yes (provided to all investors) Related to adviser: No

Auditor WEAVER AND TIDWELL, LLP. FORT WORTH, Texas, United States

Custodian COMERICA BANK DALLAS, Texas, United States Related to adviser: No

Provider details

Annual audit: Yes
Prime brokers: No
Custodians: Yes
Administrator other than the adviser: Yes
External marketing: No

WEAVER AND TIDWELL, LLP.
PCAOB 410

COMERICA BANK
LEI 70WY0ID1N53Q4254VH70

Fund details & source

Fund ID: 805-5382368867
Reported beneficial owners: 15
Minimum commitment: $10M
Form D file number: 021-295352

Form ADV 2083553 · Mar 31, 2026 · Schedule D 7.B.(1)

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

BASIN ACQUISITION FUND, LPPrivate Equity Fund · Last reported Mar 31, 2026$46.1MGross asset value

Form D fundraising filings

Basin Acquisition Fund, LP

Auditor WEAVER AND TIDWELL, L.L.P. FORT WORTH, Texas, United States

Custodian PEGASUS BANK DALLAS, Texas, United States Related to adviser: No

Provider details

Annual audit: Yes
Prime brokers: No
Custodians: Yes
Administrator other than the adviser: No
External marketing: No

WEAVER AND TIDWELL, L.L.P.
PCAOB 410

PEGASUS BANK
LEI 549300ZWYC0QUOFP0Q79

Fund details & source

Fund ID: 805-3119594315
Reported beneficial owners: 71
Minimum commitment: $1M
Form D file number: 021-217015

Form ADV 2083553 · Mar 31, 2026 · Schedule D 7.B.(1)

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

BASIN CO-INVESTMENT II, LPPrivate Equity Fund · Last reported Mar 31, 2026$44.7MGross asset value

Form D fundraising filings

BASIN CO-INVESTMENT II, LP

Auditor WEAVER AND TIDWELL, L.L.P. FORT WORTH, Texas, United States

Custodian BANK OF TEXAS FORT WORTH, Texas, United States Related to adviser: No

Provider details

Annual audit: Yes
Prime brokers: No
Custodians: Yes
Administrator other than the adviser: No
External marketing: No

WEAVER AND TIDWELL, L.L.P.
PCAOB 410

Fund details & source

Fund ID: 805-3613079514
Reported beneficial owners: 46
Minimum commitment: $0
Form D file number: 021-403606

Form ADV 2083553 · Mar 31, 2026 · Schedule D 7.B.(1)

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

BAFIII GWDC CO-INVEST, LPPrivate Equity Fund · Last reported Mar 31, 2026$17.2MGross asset value

Form D fundraising filings

BAFIII GWDC Co-Invest, LP

Fund administrator COBALT FUND SERVICES DALLAS, Texas, United States Investor statements: Yes (provided to all investors) Related to adviser: No

Auditor WEAVER AND TIDWELL, LLP. FORT WORTH, Texas, United States

Custodian TEXAS CAPITAL BANK, N.A. DALLAS, Texas, United States Related to adviser: No

Provider details

Annual audit: Yes
Prime brokers: No
Custodians: Yes
Administrator other than the adviser: Yes
External marketing: No

WEAVER AND TIDWELL, LLP.
PCAOB 410

TEXAS CAPITAL BANK, N.A.
LEI 38PG5GG0OEQK4QMSKE59

Fund details & source

Fund ID: 805-9816843178
Reported beneficial owners: 2
Minimum commitment: $10M
Form D file number: 021-546953

Form ADV 2083553 · Mar 31, 2026 · Schedule D 7.B.(1)

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

BASIN OPPORTUNITY, LPPrivate Equity Fund · Last reported Mar 30, 2023$778KGross asset value

Form D fundraising filings

BASIN OPPORTUNITY, LP

Auditor WEAVER AND TIDWELL, L.L.P. FORT WORTH, Texas, United States

Custodian TEXAS CAPITAL BANK, N.A. DALLAS, Texas, United States Related to adviser: No

Provider details

Annual audit: Yes
Prime brokers: No
Custodians: Yes
Administrator other than the adviser: No
External marketing: No

WEAVER AND TIDWELL, L.L.P.
PCAOB 410

Fund details & source

Fund ID: 805-3211991723
Reported beneficial owners: 29
Minimum commitment: $0
Form D file number: 021-302857

Form ADV 1737919 · Mar 30, 2023 · Schedule D 7.B.(1)

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

Services & filing details

Most recent filing: Mar 31, 2026. View historical filings

Reported services

Pooled investment vehicle management

Compensation

Percentage of assets · Performance-based

Principal office

1300 SOUTH UNIVERSITY DR., SUITE 600
FORT WORTH, TX, 76107, United States

CRD 289099

Filing source

Form ADV 2083553 · Mar 31, 2026 · Items 1 & 5

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.