| Petrolia, Kansas | |
| Settlement Type: | Unincorporated community |
| Image Map1: | Map of Allen Co, Ks, USA.png |
| Map Caption1: | KDOT map of Allen County (legend) |
| Pushpin Map: | Kansas#USA |
| Pushpin Label: | Petrolia |
| Pushpin Label Position: | left |
| Coordinates: | 37.7458°N -95.4717°W |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Kansas |
| Subdivision Type2: | County |
| Subdivision Name2: | Allen |
| Subdivision Type3: | Township |
| Established Title: | Founded |
| Established Title1: | Platted |
| Leader Title: | Mayor |
| Unit Pref: | Imperial |
| Elevation Ft: | 955 |
| Population Density Sq Mi: | auto |
| Population Density Km2: | auto |
| Timezone: | CST |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Postal Code Type: | ZIP code |
| Postal Code: | 66720 |
| Area Code Type: | Area code |
| Area Code: | 620 |
| Blank Name: | FIPS code |
| Blank1 Name: | GNIS ID |
| Blank1 Info: | 474962 |
Petrolia is an unincorporated community in Allen County, Kansas, United States. It is situated along the Neosho River.
In 1910, Petrolia had a money order postoffice, an express office, and was a trading point for the neighborhood. The population that year was 200.[1]
Petrolia had a post office from July 1905 until September 1953.[2]
Petrolia is located in Sections 31–32, Township 26 south, Range 18 east. Less than a mile from the southern border of Allen County, it is situated west of the Neosho River and to the south of Scatter Creek. Contained entirely within Logan Township, it is about 5 miles south-southwest of Humboldt and 13 miles from Iola (the county seat).[3] U.S. Route 169 crosses the Neosho River a mile to the south of Petrolia.
The community is served by Chanute USD 413 public school district.