Form D · Energy Conservation

Koster Energy, Inc.

Fairfield, IA · CIK 0002160554

Offering snapshot reported Oct 21, 2026 · SEC filing

Reported sold
$500K
Offering amount: $1M
Investors reported
12
Form D · investor count
Minimum accepted
$0
Reported outside-investor minimum
First sale
Sep 12, 2026
As reported in this filing

What changed?

Latest filing versus its linked predecessor, where available.

No comparable changes in the displayed metrics.

Filing history

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FiledFiling typeReported soldChange vs linked filingInvestorsSource
Oct 21, 2026Initial$500,000No comparison12SEC filing

Offering details

Securities
Option to acquire
Exemptions
06b
Duration over one year
No
Business combination
No
Sales commissions
$0
Finders' fees
$0
Form D file number
021-602086
No sales commissions, its just friends and family angels who we checked to be accredited investors

Source: Form D, filed Oct 21, 2026. Minimum accepted may differ from a standard advertised minimum.

Fund connections

No confirmed ADV fund connection is available for this issuer.

People & organizations

Current and past Form D appearances. These existing records do not establish a person's current role or uniquely identify them across issuers.

People and organizations reported in Form D filings
NameReported role
Polo Leo Altynski Ross Executive
Stephen George Ross Executive

Issuer details

Industry: Energy Conservation (See others in industry)

Address:
602 North 6 Th Street
Fairfield, IA, 52556