Document and Entity Information - shares |
3 Months Ended | |
|---|---|---|
Mar. 31, 2018 |
May 21, 2018 |
|
| Document And Entity Information | ||
| Entity Registrant Name | Spindletop Oil & Gas Co. | |
| Entity Central Index Key | 0000867038 | |
| Document Type | 10-Q | |
| Document Period End Date | Mar. 31, 2018 | |
| Amendment Flag | false | |
| Current Fiscal Year End Date | --12-31 | |
| Is Entity a Well-known Seasoned Issuer? | No | |
| Is Entity a Voluntary Filer? | No | |
| Is Entity's Reporting Status Current? | No | |
| Entity Filer Category | Smaller Reporting Company | |
| Entity Common Stock, Shares Outstanding | 6,936,269 | |
| Document Fiscal Period Focus | Q1 | |
| Document Fiscal Year Focus | 2018 |