HackingEnergy & UtilitiesUtilitiesCustomer Data InvolvedData ExfiltratedDelayed DiscoveryIdentity (basic)Financial accountFinancial credentialsMediumResolved

Sheridan Production Company III, LLC

bd_9230ea9513a3dd95 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Sep 29, 2021

Filed

Oct 20, 2021

To disclose

21 days

Affected · nationwide

32,75340 in this filing

Linked

4 filings

Confidence

65%

Full breach record for Sheridan Production Company III, LLC →

Sheridan Production Company III, LLC experienced an external system breach between August 14, 2021, and August 19, 2021. The breach, discovered on September 29, 2021, affected 32,753 individuals. Compromised information included names and financial account numbers with associated security codes or PINs. The company notified affected individuals on October 15, 2021, and offered 12 months of complimentary credit monitoring services through Experian.

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Maine clockDiscovered Sep 29, 2021 → Filed with AG Oct 20, 202121d ✓ ME AG ≤30d21 days discovery → filing

⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 46 days

discovery → filing · 21 days

Aug 14, 2021

Begins

Sep 29, 2021

Discovered

Oct 20, 2021

Filed

This filing is one of 4 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

California State AGbd_dd11ca6576d41aa32021-10-25 · +5dVerified
Indiana State AGbd_4e174317517421402021-10-15 · +5dVerified
Oregon State AGbd_ffa3d182cb807d192021-11-04 · +15dVerified by operator

Name: Sheridan Production Company III, LLC
norm: sheridan production company iii

Name: Sheridan Production Company III, LLC
norm: sheridan production company iii
Industry: Energy & Utilitiesllm

Discovered: Sep 29, 2021
Breach occurred: Aug 14, 2021 – Aug 19, 2021
Undetected for: 46 daysoccurrence → discovery
Materiality determined: —
Notification sent: Oct 15, 2021
Affected individuals: 32,753state + nationwide
Data types: Identity (basic)Financial accountFinancial credentials
Data elements: Financial account number
Attack vector: Unauthorized Access
Threat actor: External

During the incident: Provided written notification to affected consumers.
Changes made: 12 Month complimentary Experian credit monitoring
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 21 days(21 days from discovery to filing)
Compliance flags: ME AG ≤30d · 21d
Discovery-date grounding: AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Sep 29, 2021
→ Filed with AG: Oct 20, 2021
21d 30 days ME AG ≤30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Sep 29, 2021 → Filed with AG: Oct 20, 2021	21d	30 days	ME AG ≤30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

Indiana State AGOct 15 · first

Maine State AG+5d · this page

California State AG+10d

Oregon State AG+20d

Pattern: first filing Oct 15 (IN), last Nov 4 (OR) — a 20-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

Source URL: https://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/e8e52c96-8faf-4db8-86ee-9c060659f3d8.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 20, 2021
Raw hash: 097ad24af87ca0e12781791e26524b86c33355f9101f450307ac101dd72f0365

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entitySheridan Production Company III, LLC

Victim entitySheridan Production Company III, LLC

Incidentdiscovered Sep 29, 2021

Stated responseProvided written notification to affected consumers.

ComplianceME AG ≤30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov