CALLON PETROLEUM COMPANY
CALLON PETROLEUM COMPANY is a Private limited company (Ltd.) registered in United States under 610972, and its current status with Mississippi Secretary of State is active. The company was incorporated on 21 September 1994 and lists its registered address as Houston, United States. 5 shareholders are on record for CALLON PETROLEUM COMPANY, and since every one of them is a company rather than an individual, this particular filing does not on its own establish an ultimate beneficial owner (UBO) — identifying one would mean tracing the ownership of each shareholding company in turn. This profile is sourced directly from Mississippi Secretary of State and was last updated on 4 October 2026.
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Shareholders
5
Five shareholders are currently on record for CALLON PETROLEUM COMPANY, reflecting the stock ledger maintained under state corporate law (e.g. §219 of the Delaware General Corporation Law) rather than a public filing.
The largest of these is Blackrock Inc., holding 16.7% — the largest recorded stake — followed by Vanguard Group Inc at 12.6%; the remaining 3 shareholders shown hold smaller stakes.
The register reports 20 shareholders in total, though only the top 5 by holding are shown in this view.
Because every shareholder shown is a company rather than an individual, the ownership chain continues above this level, and no beneficial owner can be established from this filing alone.
| Shareholder | Type | Holding | Source Document |
|---|---|---|---|
| Blackrock Inc. | 16.7% | Mississippi Secretary of State | |
| Vanguard Group Inc | 12.6% | Mississippi Secretary of State | |
| Blackstone Inc | 11.1% | Mississippi Secretary of State | |
| State Street Corporation | 7.8% | Mississippi Secretary of State | |
| iShares Core S&P Smallcap ETF | 7.2% | Mississippi Secretary of State |
Officers
5
The President, Ceo & Director of CALLON PETROLEUM COMPANY currently on record is Joseph C. Gatto Jr.; five officers are currently on record for CALLON PETROLEUM COMPANY, filed with Mississippi Secretary of State.
The register reports 10 officers in total, including past appointments, though only the 5 most relevant records are shown here.
Management authority at CALLON PETROLEUM COMPANY sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
The source filing doesn't specify representation authority — whether officers can act individually or must sign jointly to bind the company — so that detail isn't available here.
Group Structure
CALLON PETROLEUM COMPANY sits 1 level below its ultimate parent, APA Corporation, registered in United States. 5 subsidiaries are recorded beneath it, across 1 jurisdiction. The full chain up to APA Corporation is derived by walking shareholder filings across jurisdictions; no link in it is independently corroborated by CALLON PETROLEUM COMPANY's own shareholder record. Each of these downward relationships is derived rather than filed: resolved by matching entities across the registry network, not stated directly in a single document.
Those 5 subsidiaries span United States jurisdiction, though this list should not be read as complete — subsidiaries only become visible here where shareholder data has actually been filed with a register, so holdings in jurisdictions without that filing simply won't appear. One of the 5 go a level deeper still, with its own further subsidiaries recorded beneath it — additional ownership layers this view doesn't expand.
APA Corporation
United States
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Frequently Asked Questions
Who owns CALLON PETROLEUM COMPANY?
Five shareholders are currently on record for CALLON PETROLEUM COMPANY, reflecting the stock ledger maintained under state corporate law (e.g. §219 of the Delaware General Corporation Law) rather than a public filing. The largest of these is Blackrock Inc., holding 16.7% — the largest recorded stake — followed by Vanguard Group Inc at 12.6%; the remaining 3 shareholders shown hold smaller stakes. Because every shareholder shown is a company rather than an individual, the ownership chain continues above this level, and no beneficial owner can be established from this filing alone.
Who is CALLON PETROLEUM COMPANY's UBO (Ultimate Beneficial Owner)?
Every shareholder recorded for CALLON PETROLEUM COMPANY is itself a company rather than a natural person, so no Ultimate Beneficial Owner (UBO) is identified at this level; establishing one would require tracing the ownership of each shareholding company in turn.
How many shareholders does CALLON PETROLEUM COMPANY have on record?
5 shareholders are shown on record for CALLON PETROLEUM COMPANY. The register reports 20 in total; only the top 5 by holding are shown here.
What is CALLON PETROLEUM COMPANY's company registration number?
CALLON PETROLEUM COMPANY's registration number is 610972, filed with Mississippi Secretary of State in United States. Its current status on the register is active.
Is CALLON PETROLEUM COMPANY still an active company?
CALLON PETROLEUM COMPANY's status on Mississippi Secretary of State is listed as active.
When was CALLON PETROLEUM COMPANY incorporated?
CALLON PETROLEUM COMPANY was incorporated on 21 September 1994, according to Mississippi Secretary of State.
What is CALLON PETROLEUM COMPANY's registered address?
The registered address on file for CALLON PETROLEUM COMPANY is Houston, United States.
What legal structure is CALLON PETROLEUM COMPANY registered as?
CALLON PETROLEUM COMPANY is registered as a Private limited company (Ltd.) in United States.
Who are the officers/directors of CALLON PETROLEUM COMPANY?
The President, Ceo & Director of CALLON PETROLEUM COMPANY currently on record is Joseph C. Gatto Jr.; five officers are currently on record for CALLON PETROLEUM COMPANY, filed with Mississippi Secretary of State. Management authority at CALLON PETROLEUM COMPANY sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
Does CALLON PETROLEUM COMPANY have a parent company or subsidiaries?
CALLON PETROLEUM COMPANY sits 1 level below its ultimate parent, APA Corporation, registered in United States. 5 subsidiaries are recorded beneath it, across 1 jurisdiction. Those 5 subsidiaries span United States jurisdiction, though this list should not be read as complete — subsidiaries only become visible here where shareholder data has actually been filed with a register, so holdings in jurisdictions without that filing simply won't appear. One of the 5 go a level deeper still, with its own further subsidiaries recorded beneath it — additional ownership layers this view doesn't expand.
Can Zavia monitor changes to CALLON PETROLEUM COMPANY's ownership over time?
This profile reflects a point-in-time snapshot from Mississippi Secretary of State. Zavia's monitoring API can track changes to CALLON PETROLEUM COMPANY's registered shareholders, officers, and group structure going forward, flagging updates as they're filed rather than requiring a manual recheck.
Can I access CALLON PETROLEUM COMPANY's data through an API?
Yes. Zavia's API connects directly to official government ownership registries across 195 countries and territories, including United States, so records like CALLON PETROLEUM COMPANY's registration, shareholder, UBO, and group-structure data can be queried programmatically instead of viewed one page at a time.
Where does this company information come from, and how current is it?
This record is sourced directly from Mississippi Secretary of State and was last synced on 4 October 2026.