Engineered Probiotic E. coli Produces Indican from Crude Glycerol
Published . Updated .
Key takeaways
- Researchers have developed a sustainable biosynthetic platform that produces indican, a water-soluble precursor to indigo, using the probiotic bacterium Escherichia coli Nissle 1917 (EcN).
- Exposed: USO, XLE, SHEL, OXY, XOM
- Market reaction: USO +2.4% on the day (still updating); XLE +1.6% on the day (still updating); XOM +1.2% on the day (still updating)
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Researchers have developed a sustainable biosynthetic platform that produces indican, a water-soluble precursor to indigo, using the probiotic bacterium Escherichia coli Nissle 1917 (EcN).
Directly affected
- No company is named in this report.
Indirectly affected
- USO United States Oil Fund-1.1% 30d
United States Oil Fund: its price follows crude oil. Linked by “crude” (oil) in this story.
- XLE Energy Select Sector SPDR+6.9% 30d
Energy Select Sector SPDR: its price follows crude oil. Linked by “crude” (oil) in this story.
- XOM ExxonMobil Holdings-2.7% 17d
ExxonMobil Holdings (petroleum refining): oil producers' profits rise and fall with crude prices. Linked by “crude” (oil) in this story.
- CVX Chevron+3.3% 30d
Chevron (petroleum refining): oil producers' profits rise and fall with crude prices. Linked by “crude” (oil) in this story.
- SHEL Shell+1.1% 9d
Shell (crude petroleum and natural gas): oil producers' profits rise and fall with crude prices. Linked by “crude” (oil) in this story.
- OXY Occidental Petroleum+10.3% 18d
Occidental Petroleum (crude petroleum and natural gas): oil producers' profits rise and fall with crude prices. Linked by “crude” (oil) in this story.
Price reaction, T-5 to T+3
| Ticker | T-5 | T-3 | T-1 | T0 | T+1 | T+2 | T+3 |
|---|---|---|---|---|---|---|---|
| USO | +2.78% | +4.95% | base | +2.37% | after close | after close | after close |
| XLE | +2.11% | -0.95% | base | +1.57% | after close | after close | after close |
| XOM | +3.07% | +0.89% | base | +1.25% | after close | after close | after close |
| CVX | +2.73% | +0.67% | base | +0.78% | after close | after close | after close |
| SHEL | +4.68% | +1.86% | base | +0.63% | after close | after close | after close |
| OXY | +0.77% | -0.84% | base | +0.72% | after close | after close | after close |
Closing-price change versus T-1, the last close before the story. T0 to T+3 fill in after each market close. Prices: Alpaca IEX.
Engineered Probiotic E. coli Produces Indican from Crude Glycerol Bioengineer.org
Source: Bioengineer.org
United States Oil Fund (USO) since this story, compared with the market
| Company | When | Move | Status |
|---|---|---|---|
| Chevron (CVX) | that day | +0.78% | still updating |
| Chevron (CVX) | three days earlier | +0.67% | final price |
| Chevron (CVX) | five days earlier | +2.73% | final price |
| Occidental Petroleum (OXY) | that day | +0.72% | still updating |
| Occidental Petroleum (OXY) | three days earlier | -0.84% | final price |
| Occidental Petroleum (OXY) | five days earlier | +0.77% | final price |
| Shell (SHEL) | that day | +0.63% | still updating |
| Shell (SHEL) | three days earlier | +1.86% | final price |
| Shell (SHEL) | five days earlier | +4.68% | final price |
| United States Oil Fund (USO) | that day | +2.37% | still updating |
| United States Oil Fund (USO) | three days earlier | +4.95% | final price |
| United States Oil Fund (USO) | five days earlier | +2.78% | final price |
| Select Sector Spdr Tr (XLE) | that day | +1.57% | still updating |
| Select Sector Spdr Tr (XLE) | three days earlier | -0.95% | final price |
| Select Sector Spdr Tr (XLE) | five days earlier | +2.11% | final price |
| ExxonMobil Holdings (XOM) | that day | +1.25% | still updating |
| ExxonMobil Holdings (XOM) | three days earlier | +0.89% | final price |
| ExxonMobil Holdings (XOM) | five days earlier | +3.07% | final price |
Trades by members of Congress and officials in the stocks in this story
- Rep. Pete Sessions sold ExxonMobil Holdings (XOM), worth $1,001 - $15,000 on 14 Oct 2026. That is 28 days before publication. Filed 27 Oct 2026. View the filing.
- Rep. Kevin Hern sold ExxonMobil Holdings (XOM) (jointly held), worth $100,001 - $250,000 on 31 Aug 2026. That is 72 days before publication. Filed 25 Sep 2026. View the filing.
- Rep. Pete Sessions sold Chevron (CVX), worth $15,001 - $50,000 on 14 Oct 2026. That is 28 days before publication. Filed 27 Oct 2026. View the filing.
- Rep. Kevin Hern sold Chevron (CVX) (jointly held), worth $15,001 - $50,000 on 23 Sep 2026. That is 49 days before publication. Filed 13 Oct 2026. View the filing.
- Rep. Maria Elvira Salazar bought Chevron (CVX), worth $1,001 - $15,000 on 2 Sep 2026. That is 70 days before publication. Filed 7 Oct 2026. View the filing.
- Donald J Trump, an executive branch official, bought Occidental Petroleum (OXY), worth $100,001 - $250,000 on 21 Aug 2026. That is 82 days before publication. Filed 8 Oct 2026. View the filing.
Public disclosure filings, not a recommendation. The filing link is the source document. News use of these reports still sits under 5 U.S.C. § 13107(c).
Who collects and who pays in energy
Companies tied to this story
- USO United States Oil Fund
United States Oil Fund (USO) is linked, with no stored direction, medium confidence in the 11 Nov 2026 story “Engineered Probiotic E. coli Produces Indican from Crude Glycerol.” Reason on file: United States Oil Fund: its price follows crude oil. Linked by “crude” (oil) in this story
- XLE Select Sector Spdr Tr
In “Engineered Probiotic E. coli Produces Indican from Crude Glycerol,” Select Sector Spdr Tr (XLE) is linked, with no stored direction, medium confidence. Reason on file: Energy Select Sector SPDR: its price follows crude oil. Linked by “crude” (oil) in this story
- SHEL Shell
Shell (SHEL) is linked, with no stored direction, medium confidence in the 11 Nov 2026 story “Engineered Probiotic E. coli Produces Indican from Crude Glycerol.” Reason on file: Shell (crude petroleum and natural gas): oil producers' profits rise and fall with crude prices. Linked by “crude” (oil) in this story
- OXY Occidental Petroleum
For “Engineered Probiotic E. coli Produces Indican from Crude Glycerol,” Occidental Petroleum (OXY) is linked, with no stored direction, medium confidence. Reason on file: Occidental Petroleum (crude petroleum and natural gas): oil producers' profits rise and fall with crude prices. Linked by “crude” (oil) in this story
- XOM ExxonMobil Holdings
ExxonMobil Holdings (XOM) is linked, with no stored direction, medium confidence in the 11 Nov 2026 story “Engineered Probiotic E. coli Produces Indican from Crude Glycerol.” Reason on file: ExxonMobil Holdings (petroleum refining): oil producers' profits rise and fall with crude prices. Linked by “crude” (oil) in this story
- CVX Chevron
In “Engineered Probiotic E. coli Produces Indican from Crude Glycerol,” Chevron (CVX) is linked, with no stored direction, medium confidence. Reason on file: Chevron (petroleum refining): oil producers' profits rise and fall with crude prices. Linked by “crude” (oil) in this story
How energy news reaches United States Oil Fund (USO)
The 11 Nov 2026 story “Engineered Probiotic E. coli Produces Indican from Crude Glycerol” names United States Oil Fund (USO) because of Energy.
United States Oil Fund (USO) is on the page because United States Oil Fund: its price follows crude oil. Linked by “crude” (oil) in this story
Also listed, Select Sector Spdr Tr (XLE): Energy Select Sector SPDR: its price follows crude oil. Linked by “crude” (oil) in this story
Dates and price levels for United States Oil Fund (USO)
SHEL traded between 94.35 and 97.63 across 6 sessions. The latest close on file is 96.51. USO traded between 143.02 and 171.80 across 20 sessions. The latest close on file is 148.41. XLE traded between 63.05 and 70.15 across 20 sessions. The latest close on file is 66.70.
How strong the case is around United States Oil Fund (USO)
46 out of 100Price not final
“Engineered Probiotic E. coli Produces Indican from Crude Glycerol” scores 46 out of 100. The score uses 1 sources, and 6 linked companies. The price is not final yet.