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Black Bear Oil Corporation

Crude Petroleum And Natural Gas, (Unknown City), Wyoming. NPDES permit WY0000744, in force until Dec 31, 2030. Last 12 months: over a limit 2 times (last June 2026), 22 of 22 reports late. Source: EPA ECHO, Oct 22, 2026.

Last report on file
June 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 5 of 27 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingParameterReportedLimitOver by
December 2025Specific conductance, daily maximum8050 umho/cm≤ 7500 umho/cm7%
June 2026Chloride, daily maximum2960 mg/L≤ 2000 mg/L48%

Limits in force (25)

ParameterStatisticLimitMonthsOutfall
Specific conductancedaily maximum≤ 7500 umho/cmall year001
pHinstantaneous minimum≥ 6.5 SUall year001
pHinstantaneous minimum≥ 6.5 SUall year001
pHinstantaneous maximum≤ 9 SUall year001
pHinstantaneous maximum≤ 9 SUall year001
Sulfide, total [as S]daily maximumreport only (mg/L)all year001
Sulfide, total [as S]daily maximumreport only (mg/L)all year001
Arsenic, dissolved [as As]daily maximumreport only (ug/L)all year001
Radium 226, Total Recoverabledaily maximum≤ 29 pCi/Lall year001
Chloridedaily maximum≤ 2000 mg/Lall year001
Durationmonthly totalreport only (d/mo)all year001
Durationmonthly totalreport only (d/mo)all year001
Flowdaily maximumreport only (MGD)all year001
Flowdaily maximumreport only (MGD)all year001
Sulfatedaily maximum≤ 3000 mg/Lall year001
Produced water, oil and greasedaily maximum≤ 10 mg/Lall year001
Produced water, oil and greasedaily maximum≤ 10 mg/Lall year001
pHinstantaneous maximumreport only (SU)all yearDMP1
pHinstantaneous maximumreport only (SU)all yearDMP1
pHinstantaneous minimumreport only (SU)all yearDMP1
pHinstantaneous minimumreport only (SU)all yearDMP1
Sulfide, total [as S]daily maximumreport only (mg/L)all yearDMP1
Sulfide, total [as S]daily maximumreport only (mg/L)all yearDMP1
Radium 226, totaldaily maximumreport only (pCi/L)all yearDMP1
Radium 226, totaldaily maximumreport only (pCi/L)all yearDMP1

Cited limits by parameter: Wyoming's rules and the federal ones.

Same industry: the 209 Oil and Gas Extraction permits in Wyoming.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/WY0000744 · MCP: https://passage-data.com/mcp