CAPABILITY · VERTICAL / DIRECTIONAL / HORIZONTAL / WORKOVER FLEET · 12 RIGS / 600 TO 1,500 HP TD CAPACITY · 15,000 FT VERTICAL / 3,500 FT LATERAL CALGEM · FULL COMPLIANCE / PERMIT ASSISTANCE AVAILABLE
© 2026 Diamond H Drilling Co. IADC member · CalGEM permitted
Capabilities · Full Service Catalog

Six capability lines.
Every rig in-house.

The full Diamond H capability sheet. Vertical, directional, horizontal, workover, plug & abandon, casing & cementing. Every service runs on Diamond H rigs, with Diamond H crews, on Diamond H paper. Nothing subcontracted.

Service Line · 01

Vertical drilling. Production depth.

Conventional vertical hole production drilling for development wells. Mud program, casing schedule, cement, completion supervision. all in-house. IADC-certified driller and crew on every rig.

Scope of Work

Production well construction

Spud through TD with full completion supervision. Mud program engineered for formation. Multiple casing strings (surface, intermediate, production). Cement bond log evaluation. Real-time geological correlation with operator's mud loggers.

Equipment
RIG CLASS1,500 HP TRIPLE
MAX TD15,000 FT
HOOK LOAD650,000 LB
SUITABLE FORDIATOMITE / SAND
Typical Engagement
18–28
days

Per vertical well, spud-to-release. Depending on TD, formation hardness, casing schedule, completion complexity.

Request Quote →
Service Line · 02

Directional & deviated. Build & hold.

Build-and-hold and S-curve trajectories. MWD and steering tools on contract. Directional supervisor embedded on every job. Used for offset development, urban setbacks, and shallow horizontals.

02-A

Build-and-Hold Trajectory

Standard directional well. Vertical kickoff, build section, hold to TD. Typical for offset development from existing pads. Reduces surface footprint while accessing reservoir at distance.

MAX BUILD RATE10°/100 FT
MAX INCLINATION85°
SUPERVISIONDIRECTIONAL DRILLER
02-B

S-Curve Profile

Build-drop-hold profile to land vertical at TD. Used when target formation needs vertical penetration but surface location cannot be directly above. Common in urban or environmentally constrained sites.

DROP RATE8°/100 FT
LATERAL OFFSETUP TO 2,500 FT
MWDREQUIRED
Service Line · 03

Horizontal drilling. Extended reach.

Lateral horizontal sections for heavy oil reservoirs. Geosteering on contract. Coordinated with operator geological staff. Suitable for diatomite, sand, and unconsolidated formations.

Max Lateral
3,500
FEET LATERAL SECTION
Build Rate
12°/100ft
FROM KICKOFF
MWD/LWD
YES
REAL-TIME GEOSTEER

Heavy oil horizontals. Our specialty

Diamond H ran our first horizontal in the diatomite at Lost Hills in 2014. Since then we've drilled 147 horizontal laterals in California heavy oil reservoirs. Our directional team has the most lateral footage in the basin outside of the major service companies, and our geosteering supervision is partner-grade.

Service Lines · 04 · 05 · 06

Workover. P&A. Casing.

The supporting capability lines that complete a well's life cycle. Workover for production restore. Plug & abandonment for CalGEM compliance. Casing & cementing for construction.

Service · 04
04
Workover & Rework
PRODUCTION RESTORE

Rod and tubing pulls, pump changes, BHA changes, well intervention, fish recovery, plug-back and re-completion work. Heat-rated for steam-injected wells. Five-axle and six-axle pulling units.

Capacity
250K LB
Mast
104 FT
Heat-Rated
YES
Engagement
Day Rate
+ Job Quote

Day-rate with itemized job ticket. Or fixed-fee quote on defined scope.

Schedule a Pull →
Service · 05
05
Plug & Abandonment
REGULATORY CLOSURE

CalGEM-compliant plug & abandonment. Cement pumping in-house. Surface restoration to operator specification. Full regulatory documentation. Used by operators clearing wells under California Idle Well Management.

Compliance
CalGEM
Cement
IN-HOUSE
Docs
FULL
Engagement
Fixed Fee
Per Well

Quote turnaround 48 hrs. CalGEM-compliant scope. Permit assistance available.

Idle Well Quote →
Service · 06
06
Casing & Cementing
WELL CONSTRUCTION

Surface, intermediate, and production casing runs. In-house cementing crew and pumps. Cement bond logging coordinated with wireline. Production casing centralization to API spec.

Surface CSG
13⅜"
Cement
IN-HOUSE
Spec
API
Engagement
Per Job
Lump Sum

Casing string and cement program priced as part of drilling AFE.

AFE Review →
Engagement Models

Three ways to engage Diamond H.

How operators contract us. MSA, footage-based, or day-rate. Operator's choice. Same crew, same equipment, same documentation.

01
Master Service Agreement

Annual MSA

Multi-year agreement with priority dispatch, dedicated rig assignment, locked rates. Best rate available. Used by Aera, California Resources, Sentinel Peak.

TERM · 12+ MONTHS
PRIORITY · DEDICATED RIG
RATE · BEST AVAILABLE
02
Footage Drilling

Footage Contract

Fixed price per foot to TD. Operator shifts risk to contractor; contractor manages all spread cost. Best for predictable formations and standardized well design.

UNIT · DOLLARS / FOOT
RISK · CONTRACTOR-HELD
SCOPE · DEFINED WELL
03
Day Rate

Daywork Contract

Per-day rate with operator carrying risk. Standard for exploratory wells, workover, and complex completion programs. Itemized daily reports submitted by 06:00.

UNIT · DOLLARS / DAY
RISK · OPERATOR-HELD
REPORT · 06:00 DAILY
Quote Turnaround

Send us
the well plan.
Quote in 48 hours.

Diamond H can quote AFE off a well plan, scope-of-work, or a phone conversation. Most quotes turn around within 48 hours. Pre-AFE consultation is free.

(661) 327·2500
Submit a Well Plan
Pre-AFE

Call us
before
the AFE.

Diamond H regularly saves operators $100k+ per well in pre-AFE consultation. Well plan review, BHA design, mud program critique, cost estimate sanity check. Free service.

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