Are there any settlement reconciliation software that focus on straight-through processing for energy trading back offices?

Yes. There are settlement/reconciliation platforms and back-office systems used in energy trading that emphasize straight-through processing (STP), although many are broader ETRM/back-office suites rather than “reconciliation-only” tools.

A few examples/categories to look at:

Energy/commodities back-office suites with STP-oriented settlement

• ION Openlink Endur
  Very widely used in energy trading. Supports trade capture through settlement, confirmations, invoicing, and reconciliation workflows with automation/STP options.

• ION Allegro
  Also common in commodity/energy operations. Has settlement, accounting, and reconciliation functionality geared toward reducing manual breakpoints.

• RightAngle
  Used in commodity trading/back-office environments; supports settlement and accounting workflows with integration points for automated processing.

• Aspect Enterprise Solutions
  Commodity/energy-focused platform with back-office, accounting, invoicing, and settlement capabilities.

• Enuit eZ-nergy / eZ-ops
  Energy trading and risk platform with operational back-office processing and reconciliation features.

Reconciliation-focused tools often integrated into energy back offices

These may not be energy-specific, but are used to automate matching/reconciliation around settlements:

• SmartStream
• Duco
• Precisely Trillium
• FIS / Bank of New York-style enterprise reconciliation tools depending on the use case

What to look for if STP is the priority

For energy settlement back offices, ask vendors whether they support:

• automated matching of trade vs. invoice vs. market data
• tolerance-based reconciliation
• exception workflow and case management
• settlement netting and multi-currency handling
• automated accounting entries and GL posting
• integration with ETRM, ERP, market data, and clearing/TSO/ISO systems
• high-volume batch processing and API/STP interfaces

If you want, I can also give you:

1. a shortlist of the best-fit vendors specifically for power/gas trading, or
2. a comparison table focused on STP, reconciliation, and settlement capabilities.